List of constructed languages - AbsoluteAstronomy.com

This list of notable constructed language

Constructed language

A planned or constructed language—known colloquially as a conlang—is a language whose phonology, grammar, and/or vocabulary has been consciously devised by an individual or group, instead of having evolved naturally...

s is in alphabetical order, and divided into auxiliary, engineered

Engineered language

Engineered languages are constructed languages devised to test or prove some hypotheses about how languages work or might work. There are at least three subcategories, philosophical languages , logical languages , and experimental languages...

, and artistic (including fictional) languages, and their respective subgenres.

Spoken (major)

The following are languages that have generated significant followings, or which have been of significance in the history of auxiliary languages.

Language name	ISO	Year of first publication	Creator	Comments
Solresol Solresol Solresol is an artificial language devised by François Sudre, beginning in 1827. He published his major book on it, Langue musicale universelle, in 1866, though he had already been publicizing it for some years...		1827	François Sudre François Sudre Jean-François Sudre was a French author and musician born in Albi, France in 1787 and died in Paris in 1862.He is best known for his work on developing a musical language called Solresol, as well as patenting the Sudrophone.- External links :*...	The famous "musical language"
Universalglot Universalglot Universalglot is an a posteriori international auxiliary language published by the French linguist Jean Pirro in 1868 in Tentative d'une langue universelle, Enseignement, grammaire, vocabulaire...		1868	Jean Pirro Jean Pirro Jean Pirro was a French linguist who in 1868 invented the "universal language", Universalglot. He was also the father of André Pirro.-See also:*Constructed languages...	Arguably the first naturalistic international auxiliary language International auxiliary language An international auxiliary language or interlanguage is a language meant for communication between people from different nations who do not share a common native language... (IAL), predating even Volapük
Volapük Volapük Volapük is a constructed language, created in 1879–1880 by Johann Martin Schleyer, a Roman Catholic priest in Baden, Germany. Schleyer felt that God had told him in a dream to create an international language. Volapük conventions took place in 1884 , 1887 and 1889 . The first two conventions used...	vo, vol	1879–1880	Johann Martin Schleyer Johann Martin Schleyer Martin Schleyer was a German Catholic priest who invented the constructed language Volapük. His official name was "Martin Schleyer"; he added the name "Johann" unofficially....	First to generate international interest in IALs
Esperanto Esperanto is the most widely spoken constructed international auxiliary language. Its name derives from Doktoro Esperanto , the pseudonym under which L. L. Zamenhof published the first book detailing Esperanto, the Unua Libro, in 1887...	eo, epo	1887	L. L. Zamenhof L. L. Zamenhof Ludwig Lazarus Zamenhof December 15, 1859 – April 14, 1917) was the inventor of Esperanto, the most successful constructed language designed for international communication.-Cultural background:...	Fluent speakers: between 30,000 and 300,000; Casual users: est. 100,000 to 2 million; native Native Esperanto speakers Native Esperanto speakers are born into families in which Esperanto is spoken . This usually occurs when the parents meet each other at an Esperanto gathering but do not know each other’s native language... : 200 to 2000 (1996, est.).
Idiom Neutral Idiom Neutral Idiom Neutral is an international auxiliary language, published in 1902 by the International Academy of the Universal Language under the leadership of Waldemar Rosenberger, a St...		1902	Waldemar Rosenberger Waldemar Rosenberger Waldemar Rosenberger, from Saint Petersburg, Russia, became director of the Volapük Academy in 1892. Under his leadership, the Academy began to experiment more with the Volapük language. In 1902 the Academy proposed a heavily revised version which was known as Neutral and later Idiom Neutral....	A naturalistic IAL by a former advocate of Volapük
Latino sine Flexione Latino sine Flexione Latino sine flexione , or Peano’s Interlingua , is an international auxiliary language invented by the Italian mathematician Giuseppe Peano in 1903. It is a simplified version of Latin, and retains its vocabulary...		1903	Giuseppe Peano Giuseppe Peano Giuseppe Peano was an Italian mathematician, whose work was of philosophical value. The author of over 200 books and papers, he was a founder of mathematical logic and set theory, to which he contributed much notation. The standard axiomatization of the natural numbers is named the Peano axioms in...	"Latin without inflections," it replaced Idiom Neutral in 1908
Ido Ido Ido is a constructed language created with the goal of becoming a universal second language for speakers of different linguistic backgrounds as a language easier to learn than ethnic languages...	io, ido	1907	A group of reformist Esperanto speakers	The most successful offspring of Esperanto
Occidental Occidental language The language Occidental, later Interlingue, is a planned language created by the Balto-German naval officer and teacher Edgar de Wahl and published in 1922....	ie, ile	1922	Edgar de Wahl Edgar de Wahl Edgar von Wahl or Edgar de Wahl was a teacher and creator of the language Occidental...	A sophisticated naturalistic IAL (Interlingue)
Novial Novial Novial [nov- + IAL, International Auxiliary Language] is a constructed international auxiliary language intended to facilitate international communication and friendship, without displacing anyone's native language...	nov	1928	Otto Jespersen Otto Jespersen Jens Otto Harry Jespersen or Otto Jespersen was a Danish linguist who specialized in the grammar of the English language.He was born in Randers in northern Jutland and attended Copenhagen University, earning degrees in English, French, and Latin...	Another sophisticated naturalistic IAL
Glosa Glosa Glosa is an international auxiliary language based on a previous draft auxiliary called Interglossa. As an isolating language, there are no inflections, so that words always remain in their dictionary form, no matter what function they have in the sentence...	igs	1943	Lancelot Hogben Lancelot Hogben Lancelot Thomas Hogben FRS was a versatile British experimental zoologist and medical statistician. He is best known for developing Xenopus laevis as a model organism for biological research in his early career, attacking the eugenics movement in the middle of his career, and popularising books on... , et al.	Originally called Interglossa, has a strong Greco-Latin vocabulary
Interlingua Interlingua Interlingua is an international auxiliary language , developed between 1937 and 1951 by the International Auxiliary Language Association...	ia, ina	1951	International Auxiliary Language Association International Auxiliary Language Association The International Auxiliary Language Association was founded in 1924 to "promote widespread study, discussion and publicity of all questions involved in the establishment of an auxiliary language, together with research and experiment that may hasten such establishment in an intelligent manner and...	A Language to create common Romance vocabulary

Spoken (minor)

There have been hundreds of proposals for auxiliary languages, and more continue to be created. The following are languages with some notability, either historically or because of unusual characteristics.

Language name	ISO	Year of first publication	Creator	Comments
Adjuvilo Adjuvilo Adjuvilo is a language created in 1910 by Claudius Colas under the pseudonym of "Profesoro V. Esperema". Although it was a full language, it may not have been created to be spoken. Many believe that as an Esperantist, Colas created Adjuvilo to help create dissent in the then-growing Ido movement...		1910	Claudius Colas Claudius Colas Claudius Colas was a French Esperantist who lived from 1884 to 1914. In 1910, he created the constructed language Adjuvilo, which was a complete language that was never meant to be spoken but instead an effort to help create dissent in the then-growing Ido movement...	an esperantido created to cause dissent among Idoists
Afrihili Afrihili Afrihili is a constructed language designed in 1970 by Ghanaian historian K. A. Kumi Attobrah to be used as a lingua franca in all of Africa. The name of the language is a combination of Africa and Swahili...	afh	1970	K. A. Kumi Attobrah	a pan-African language
Arcaicam Esperantom Arcaicam Esperantom Arcaicam Esperantom is a constructed language created to act as a fictional 'Old Esperanto,' in the vein of languages such as Old English or the use of Latin citations in modern texts...		1969	Manuel Halvelik	'Archaic Esperanto', an archaizing 'Old Esperanto' for literature
Babm Babm Babm is an international auxiliary language created by the Japanese philosopher Rikichi [Fuishiki] Okamoto . Okamoto first published the language in a 1962 book, but the language has not caught on even within the constructed language community, and does not have any known current speakers...		1962	Rikichi Okamoto	noted for using Latin letters as an abjad
Bolak Bolak (Blue Language) Bolak is a constructed language that was invented by Léon Bollack. The name of the language means both `blue language' and `ingenious creation' in the language itself.-History:...		1899	Léon Bollack Léon Bollack Léon Bollack was a rich French trader who created The Blue Language or Bolak in 1899. After a few years, he joined the Ido movement; it is possible that the blue color of the Ido flag was his proposal. He uttered the phrase: "It seems to me that both the Esperanto and Volapük poets are worth only...	prospered fairly well in its initial years, now almost forgotten.
Communicationssprache Communicationssprache Communicationssprache, also known as Universal Glot, Weltsprache and Komuniklingvo, is one of the earliest international auxiliary languages.- Overview :It was created by Joseph Schipfer and first published in 1839 in Wiesbaden....		1839	Joseph Schipfer Joseph Schipfer Joseph Schipfer was a German nobleman, landowner and vine producer, today mostly known for his creation of the language Communicationssprache....	based on French
Esperanto II Esperanto II Esperanto II was a reform of Esperanto proposed by René de Saussure in 1937, the last of a long series of such proposals beginning with a 1907 response to Ido later called Antido 1...		1937	René de Saussure René de Saussure René de Saussure was a Swiss Esperantist and professional mathematician, who composed important works about Esperanto and interlinguistics from a linguistic viewpoint...	last of Saussure's many esperantido Esperantido Esperantido is the term used within the Esperanto and constructed language communities to describe a language project based on or inspired by Esperanto. Esperantido originally referred to the language of that name, which later came to be known as Ido. The word Esperantido is derived from Esperanto... s
Europanto Europanto Europanto is a macaronic language concept with a fluid vocabulary from multiple European languages of the user's choice or need. It was conceived in 1996 by Diego Marani based on the common practice of word-borrowing usage of many EU Languages...		1996	Diego Marani Diego Marani Diego Marani is an Italian novelist, translator, and newspaper columnist. In 1996, while working as a translator for the Council of the European Union, he invented Europanto, a mock international auxiliary language. Marani has published different articles, short stories and video clips in Europanto...	a "linguistic jest"
Intal Intal language Intal is an international auxiliary language, published in 1956 by the German linguist Erich Weferling. The name of the language is the acronym for INTernational Auxiliary Language...		1956	Erich Weferling	an effort to unite the most common systems of constructed languages
Lingua Franca Nova Lingua Franca Nova Lingua Franca Nova is an auxiliary constructed language created by Dr. C. George Boeree of Shippensburg University, Pennsylvania. Its vocabulary is based on the Romance languages French, Italian, Portuguese, Spanish, and Catalan. The grammar is highly reduced and similar to the Romance creoles...	lfn	1998	C. George Boeree and others	Romance vocabulary with creole-like grammar
Lingua sistemfrater Lingua sistemfrater Frater , an a posteriori international auxiliary language, published in Frater . The simplest International Language Ever Constructed, in 1957 by the Vietnamese linguist Phạm Xuân Thái...		1957	Pham Xuan Thai	Greco-Latin vocabulary with southeast Asian grammar
Lojban Lojban See also discussed by Arthur Protin, Bob LeChevalier, Carl Burke, Doug Landauer, Guy Steele, Jack Waugh, Jeff Prothero, Jim Carter, and Robert Chassell, as well as , the concepts which "average English speakers won't recognize" because most of them "have no exact English counterpart".Like most...	jbo	1987	Logical Language Group	A logical language based on Mandarin, English, Hindi, Spanish, Russian and Arabic
Kotava	avk	1978	Staren Fetcey	An a priori constructed language
Modern Indo-European Modern Indo-European Modern Indo-European is a proposed international auxiliary language based on the extinct Proto-Indo-European language, presented by two undergraduate students at Extremadura University, Carlos Quiles and María Teresa Batalla, in 2006...		2006	Carlos Quiles and María Teresa Batalla	modernized Proto-Indo-European
Mondial Mondial (language) Mondial is an international auxiliary language created by Dr. Helge Heimer, a Swede, in the 1940s. A well-developed project, it received favourable reviews from several academic linguists but achieved little practical success...		1940s	Dr. Helge Heimer	naturalistic European language
Mundolinco Mundolinco Mundolinco is a constructed language created by the Dutch author J. Braakman in 1888. It is notable for apparently being the first Esperantido, i.e. the first Esperanto derivative....		1888	J. Braakman	the first esperantido Esperantido Esperantido is the term used within the Esperanto and constructed language communities to describe a language project based on or inspired by Esperanto. Esperantido originally referred to the language of that name, which later came to be known as Ido. The word Esperantido is derived from Esperanto...
Neo Neo (constructed language) Neo is an international auxiliary language created by a Belgian diplomat of Italian descent Arturo Alfandari.-History:The first draft was published in 1937 by Arturo Alfandari but attracted wider attention in 1961 when Alfandari published his books Cours Practique de Neo and The Rapid Method of Neo...		1961	Arturo Alfandari Arturo Alfandari Arturo Alfandari was a Belgian diplomat, known as the creator of the language Neo.-Life:Originally from Italy, in the First World War he served as a cipher officer for the Italian High Command...	a very terse European language
Noxilo Noxilo language Noxilo is an international auxiliary language, created by Mizuta Sentaro . In 1997 he published a book outlining the language, and presented it on his website...		1997	Mizta Sentaro	a language trying to avoid any regional or ethnic bias
Nuwaubic		1970s?	Malachi Z. York	the language of a black supremacist religious group
Poliespo Poliespo Poliespo is an extension of Esperanto using Cherokee words, created by Billy Ray Waldon .-Principle of Creation:...		1990s?	Nvwtohiyada Idehesdi Sequoyah	Esperanto grammar with significant Cherokee vocabulary
Slovianski Slovianski Slovianski is a Slavic interlanguage, created in 2006 by a group of language creators from different countries. Its purpose is to facilitate communication between representatives of different Slavic nations, as well as to allow people who don't know any Slavic language to communicate with Slavs...		2006	Ondřej Rečnik, Gabriel Svoboda, Jan van Steenbergen, Igor Polyakov	A naturalistic language based on the Slavic languages
Slovio Slovio Slovio is a constructed language begun in 1999 by Mark Hučko. Hučko claims that the language should be relatively easy for non-Slavs to learn as well, as an alternative to tongues such as Esperanto which are based more on Latin root words. The vocabulary is based on the shared lexical foundation...		1999	Mark Hučko	A constructed language based on the Slavic languages and the grammar of esperanto Esperanto is the most widely spoken constructed international auxiliary language. Its name derives from Doktoro Esperanto , the pseudonym under which L. L. Zamenhof published the first book detailing Esperanto, the Unua Libro, in 1887...
Sona Sona language Sona is a worldlang created by Kenneth Searight and described in a book he published in 1935. The word Sona in the language itself means "auxiliary neutral thing", but the name was also chosen to echo "sonority" or "sound"....		1935	Kenneth Searight Kenneth Searight Kenneth Searight was the creator of the international auxiliary language Sona. His book Sona; an auxiliary neutral language outlines the language's grammar and vocabulary. Encounters with Searight also influenced English author E.M...	best known attempt at universality of vocabulary
Spokil Spokil Spokil is a constructed language, created by the Frenchman Adolphe Nicolas.During the 1880s, the most popular international auxiliary language was undeniably Volapük. However, after a brief period of overwhelming success, rivalry on the part of the more practical and less complicated Esperanto led...		1887 or 1890	Adolph Nicolas	an a priori language by a former Volapük advocate
Toki Pona Toki Pona Toki Pona is a constructed language, first published online in mid-2001. It was designed by translator and linguist Sonja Elen Kisa of Toronto....		2001	Sonja Elen Kisa	highly simplified language with restricted vocabulary
Unilingua		1966	Noubar Agapoff	an a priori language with systematic vocabulary (aka: Mirad)
Ygyde		~2004	Andrew Nowicki	An Oligosynthetic language Oligosynthetic language An oligosynthetic language is any language using very few morphemes, perhaps only a few hundred, which combine synthetically to form statements. It is contrasted to polysynthetic languages... with planned word lengths, word structure and unique glyphs

Controlled languages

Controlled languages are natural languages that have in some way been altered to make them simpler, easier to use, or more acceptable to those who do not speak the original language well. Most of these have been based on English.

Ander-Saxon (described in the article Anglo-Saxon linguistic purism)
Basic English
Basic English
Basic English, also known as Simple English, is an English-based controlled language created by linguist and philosopher Charles Kay Ogden as an international auxiliary language, and as an aid for teaching English as a Second Language...
E-Prime
E-Prime
E-Prime is a version of the English language that excludes all forms of the verb to be. E-Prime does not allow conjugations of to be , archaic forms E-Prime (short for English-Prime, sometimes denoted E′) is a version of the English language that excludes all forms of the verb to be. E-Prime does...
Globish
Globish
Globish may refer to:* Globish , a formalized natural language subset of English grammar and vocabulary* Globish , a simplified constructed language related to, but independent of, standard English...
Plain English
Plain English
Plain English is a generic term for communication styles that emphasise clarity, brevity and the avoidance of technical language – particularly in relation to official government communication, including laws.The intention is to write in a manner that is easily understood by the target...
Simplified English
Simplified English
Simplified English is the original name of a controlled language historically developed for aerospace industry maintenance manuals. It offers a carefully limited and standardized subset of English. It is now officially known under its trademarked name as Simplified Technical English...
Special English
Special English
Special English is a controlled version of the English language first used on October 19, 1959, and still presented daily by the United States broadcasting service Voice of America. World news and other programs are read one-third slower than regular VOA English. Reporters avoid idioms and use a...

Visual languages

Visual languages use symbols or movements in place of the spoken word.

Blissymbols
Blissymbols
Blissymbols or Blissymbolics was conceived as an ideographic writing system called Semantography consisting of several hundred basic symbols, each representing a concept, which can be composed together to generate new symbols that represent new concepts...

(zbl)
Gestuno
Signuno

Human-usable

An Essay towards a Real Character and a Philosophical Language
An Essay towards a Real Character and a Philosophical Language
An Essay towards a Real Character, and a Philosophical Language is the best-remembered of the numerous works of John Wilkins, in which he expounds a new universal language, meant primarily to facilitate international communication among scholars, but envisioned for use by diplomats, travelers, and...

by John Wilkins
John Wilkins
John Wilkins FRS was an English clergyman, natural philosopher and author, as well as a founder of the Invisible College and one of the founders of the Royal Society, and Bishop of Chester from 1668 until his death....
aUI
AUI (language)
aUI is a constructed language credited to John W. Weilgart, created in the beginning of the 1960s. Because of its structure it is classified as a logical language or philosophical language.- History :...
Characteristica universalis
Characteristica universalis
The Latin term characteristica universalis, commonly interpreted as universal characteristic, or universal character in English, is a universal and formal language imagined by the German philosopher Gottfried Leibniz able to express mathematical, scientific, and metaphysical concepts...
Ilaksh
Isotype
Isotype (pictograms)
Isotype is a method of showing social, technological, biological and historical connections in pictorial form...
Ithkuil
Ithkuil
Ithkuil is a constructed language marked by outstanding grammatical complexity, expressed with a rich phonemic inventory or through an original, graphically structured, system of writing....
Láadan
Láadan
Láadan is a constructed language created by Suzette Haden Elgin in 1982 to test the Sapir–Whorf Hypothesis, specifically to determine if development of a language aimed at expressing the views of women would shape a culture; a subsidiary hypothesis was that Western natural languages may be better...

(ldn)
Loglan
Loglan
Loglan is a constructed language originally designed for linguistic research, particularly for investigating the Sapir–Whorf Hypothesis. The language was developed beginning in 1955 by Dr James Cooke Brown with the goal of making a language so different from natural languages that people learning...
Logopandecteision
Logopandecteision
Logopandecteision is a 1653 book by Sir Thomas Urquhart, disingenuously detailing his plans for the creation of an artificial language by that name...
Lojban
Lojban
See also discussed by Arthur Protin, Bob LeChevalier, Carl Burke, Doug Landauer, Guy Steele, Jack Waugh, Jeff Prothero, Jim Carter, and Robert Chassell, as well as , the concepts which "average English speakers won't recognize" because most of them "have no exact English counterpart".Like most...

(jbo)
Ro
Unilingua
Ygyde

Knowledge representation

Several wellknown Knowledge Query and Manipulation Language
Knowledge Query and Manipulation Language
The Knowledge Query and Manipulation Language, or KQML, is a languageand protocol for communication among software agents and knowledge-based systems. It was...

s have been created from extensive research projets, to represent and query knowledge on computers:
- Knowledge Interchange Format
  Knowledge Interchange Format
  Knowledge Interchange Format is a computer-oriented language for the interchange of knowledge among disparate computer programs.It has declarative semantics ; it is logically comprehensive Knowledge Interchange Format (KIF) is a computer-oriented language for the interchange of knowledge among...
  
  (KIF), a precursor for knowledge representation.
- Common Logic
  Common logic
  Common logic is a framework for a family of logic languages, based on first-order logic, intended to facilitate the exchange and transmission of knowledge in computer-based systems....
  
  (CL), an ISO standard derived from KIF.
- Resource Description Framework
  Resource Description Framework
  The Resource Description Framework is a family of World Wide Web Consortium specifications originally designed as a metadata data model...
  
  (RDF), a language standardized by the World Wide Web Consortium
  World Wide Web Consortium
  The World Wide Web Consortium is the main international standards organization for the World Wide Web .Founded and headed by Tim Berners-Lee, the consortium is made up of member organizations which maintain full-time staff for the purpose of working together in the development of standards for the...
  
  (W3C) based on the principles of Common Logic, which represents knowledge as a directed graph built from unordered sets of "sentences" (in fact, as relational triples: subject, relation, attribute) using a XML
  XML
  Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....
  
  syntax for its interchange format. Each element of the triple can be either a simple value (if its semantic value is not specified outside of the relation using it), or identifiers of objects (such as URIs) that are part of enumeration built from another subset of relational triples. The relations may be open (in which case the attributes are not enumerable) or closed in a finite enumerable set whose elements can be easily represented as objects as well with their own identity participating in many different relations for other parts of the knowledge.
  - UML may be used to describe the sets of relations and rules of inference and processing, and SQL may be used to use them in concrete schemas and compact store formats, but RDF designs its own (semantically more powerful) schema language for handling large sets of knowledge data stored in RDF format.
  - RDF is probably useful only for automated machine processing, but its verbosity and complex (for a human) representation mechanisms and inference rules does not qualify it as a human language except in very limited contexts. It is still a specification with extensive research.
- Web Ontology Language
  Web Ontology Language
  The Web Ontology Language is a family of knowledge representation languages for authoring ontologies.The languages are characterised by formal semantics and RDF/XML-based serializations for the Semantic Web...
  
  (OWL), another knowledge representation language standardized by W3C, and derived from Common Logic.
CycL
The Distributed Language Translation
Distributed Language Translation
Distributed Language Translation or Distribuita Lingvo-Tradukado was a project to develop an interlingual machine translation system for twelve European languages...

project used a "binary-coded" version of Esperanto
Esperanto
is the most widely spoken constructed international auxiliary language. Its name derives from Doktoro Esperanto , the pseudonym under which L. L. Zamenhof published the first book detailing Esperanto, the Unua Libro, in 1887...

as a pivot language
Pivot language
A pivot language, sometimes also called a bridge language, is an artificial or natural language used as an intermediary language for translation between many different languages – to translate between any pair of languages A and B, one translates A to the pivot language P, then from P to B...

between the source language and its translation.
Lincos
Lincos (language)
Lincos is an artificial language first described in 1960 by Dr. Hans Freudenthal in his book Lincos: Design of a Language for Cosmic Intercourse, Part 1. It is a language designed to be understandable by any possible intelligent extraterrestrial life form, for use in interstellar radio transmissions...
Loom
Universal Networking Language
Universal Networking Language
Universal Networking Language is a declarative formal language specifically designed to represent semantic data extracted from natural language texts...

(UNL)

Literature

Adûnaic
Adûnaic
Adûnaic is a fictional language in the fantasy works of J. R. R. Tolkien.One of the languages of Arda in Tolkien's Middle-earth legendarium, it was spoken by the Men of Númenor during the Second Age.-Fictional history:...

, from J. R. R. Tolkien
J. R. R. Tolkien
John Ronald Reuel Tolkien, CBE was an English writer, poet, philologist, and university professor, best known as the author of the classic high fantasy works The Hobbit, The Lord of the Rings, and The Silmarillion.Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College,...

's works
Aklo
Aklo
Aklo is a fictional language.-Overview:Aklo is a secret language, possibly an artificial cipher or one used by a non-human race, associated with the writing of forbidden texts and evil cultists....

, Tsath-yo, and R'lyehian are ancient and obscure languages in the works of H. P. Lovecraft
H. P. Lovecraft
Howard Phillips Lovecraft --often credited as H.P. Lovecraft — was an American author of horror, fantasy and science fiction, especially the subgenre known as weird fiction....

, Clark Ashton Smith
Clark Ashton Smith
Clark Ashton Smith was a self-educated American poet, sculptor, painter and author of fantasy, horror and science fiction short stories. He achieved early local recognition, largely through the enthusiasm of George Sterling, for traditional verse in the vein of Swinburne...

, and others. Aklo is considered by some writers to be the written language
Written language
A written language is the representation of a language by means of a writing system. Written language is an invention in that it must be taught to children, who will instinctively learn or create spoken or gestural languages....

of the Serpent People
Amtorian, spoken in some cultures on the planet Venus
Venus
Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. The planet is named after Venus, the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows...

in Pirates of Venus
Pirates of Venus
Pirates of Venus is the first book in the Venus series by Edgar Rice Burroughs, the last major series in Burroughs's career . It was first serialized in six parts in Argosy in 1932 and published in book form two years later by Edgar Rice Burroughs, Inc...

by Edgar Rice Burroughs
Edgar Rice Burroughs
Edgar Rice Burroughs was an American author, best known for his creation of the jungle hero Tarzan and the heroic Mars adventurer John Carter, although he produced works in many genres.-Biography:...

and several sequels. Judged by critic Fredrik Ekman to have "a highly inventive morphology but a far less interesting syntax."
Ancient Language in the Inheritance Cycle
Inheritance Cycle
The Inheritance Cycle is a series of fantasy novels by Christopher Paolini. It was previously titled the Inheritance Trilogy until Paolini's announcement on October 30, 2007 that there would be a fourth book...

by Christopher Paolini
Christopher Paolini
Christopher Paolini is an American author. He is best known as the author of the Inheritance Cycle, which consists of the books Eragon, Eldest, Brisingr, and Inheritance...

.
Angley, Unglish and Ingliss - three languages spoken respectively in Western Europe, North America and the Pacific in the 29th century world of Poul Anderson
Poul Anderson
Poul William Anderson was an American science fiction author who began his career during one of the Golden Ages of the genre and continued to write and remain popular into the 21st century. Anderson also authored several works of fantasy, historical novels, and a prodigious number of short stories...

's Orion Shall Rise
Orion Shall Rise
Orion Shall Rise is a science fiction novel by Poul Anderson as part of his Maurai series, published in 1983.The novel is set several hundred years after a devastating nuclear war which has pushed back the level of technology....

. All derived from present-day English, the three are mutually unintelligible, following 800 years of separate development after a 21st century nuclear war
Nuclear warfare
Nuclear warfare, or atomic warfare, is a military conflict or political strategy in which nuclear weaponry is detonated on an opponent. Compared to conventional warfare, nuclear warfare can be vastly more destructive in range and extent of damage...

and the extensive absorption of words and grammatical forms from French
French language
French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

in the first case, Russian
Russian language
Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...

, Chinese
Chinese language
The Chinese language is a language or language family consisting of varieties which are mutually intelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the branches of Sino-Tibetan family of languages...

and Mongolian
Mongolian language
The Mongolian language is the official language of Mongolia and the best-known member of the Mongolic language family. The number of speakers across all its dialects may be 5.2 million, including the vast majority of the residents of Mongolia and many of the Mongolian residents of the Inner...

in the second, and Polynesian
Polynesian languages
The Polynesian languages are a language family spoken in the region known as Polynesia. They are classified as part of the Austronesian family, belonging to the Oceanic branch of that family. They fall into two branches: Tongic and Nuclear Polynesian. Polynesians share many cultural traits...

in the third.
Anglic, the dominant language of the declining Galactic empire depicted in Poul Anderson
Poul Anderson
Poul William Anderson was an American science fiction author who began his career during one of the Golden Ages of the genre and continued to write and remain popular into the 21st century. Anderson also authored several works of fantasy, historical novels, and a prodigious number of short stories...

's Dominic Flandry
Dominic Flandry
Dominic Flandry is the central character in the second half of Poul Anderson's Technic History science fiction. He first appeared in 1951.The space opera series is set in the 31st century, during the waning days of the Terran Empire...

series, is descended from present-day English but so changed that only professional historians or linguists can understand English texts.
Anglic: unrelated to the above, seen in the Civiliztion of the Five Galaxies in David Brin
David Brin
Glen David Brin, Ph.D. is an American scientist and award-winning author of science fiction. He has received the Hugo, Locus, Campbell and Nebula Awards.-Biography:...

's Uplift Trilogies
David Brin
Glen David Brin, Ph.D. is an American scientist and award-winning author of science fiction. He has received the Hugo, Locus, Campbell and Nebula Awards.-Biography:...

; is descended from modern English, modified to account for the differences in the culture on Earth and it's colonies.
Anglo-French, in the alternate history world of the Lord Darcy
Lord Darcy (fiction)
Lord Darcy is a detective in an alternate history, created by Randall Garrett. The first stories were asserted to take place in the same year as they were published, but in a world very different from our own.-Title character:...

stories by Randall Garrett
Randall Garrett
Randall Garrett was an American science fiction and fantasy author. He was a prolific contributor to Astounding and other science fiction magazines of the 1950s and 1960s...

- where England and France were permanently united into a single kingdom by Richard the Lionheart and their languages consequently merged.
Anglo-French, unconnected with the above, spoken in the dystopian 20th century of Poul Anderson
Poul Anderson
Poul William Anderson was an American science fiction author who began his career during one of the Golden Ages of the genre and continued to write and remain popular into the 21st century. Anderson also authored several works of fantasy, historical novels, and a prodigious number of short stories...

's The Shield of Time where England won the Hundred Years' War
Hundred Years' War
The Hundred Years' War was a series of separate wars waged from 1337 to 1453 by the House of Valois and the House of Plantagenet, also known as the House of Anjou, for the French throne, which had become vacant upon the extinction of the senior Capetian line of French kings...

and conquered France.
asa'pili ("world language"), in bolo'bolo, by Swiss author P.M.
P.M. (author)
The pseudonym P.M. is used by an otherwise anonymous Swiss author , best known for his 1983 anarchist / anti-capitalist social utopian book bolo'bolo, published with the paranoia city verlag of Zürich.-bolo'bolo:The title of this book refers to the...

.
Atlango from Ryszard Antoniszczak (Richard A Antonius) 's works"
Atlantean language
Atlantean language
The Atlantean language is a constructed language created by Marc Okrand for Disney's film Atlantis: The Lost Empire. The language was intended as a possible "mother language" and was therefore crafted to include a vast Indo-European word stock with its very own grammar, which is at times described...

, a constructed language created for Disney's film Atlantis: The Lost Empire
Atlantis: The Lost Empire
Atlantis: The Lost Empire is a 2001 American animated film produced by Walt Disney Feature Animation. Written by Tab Murphy, directed by Gary Trousdale and Kirk Wise, and produced by Don Hahn, it is the first science fiction film in the Disney animated features canon and the 41st overall. The film...
Babel-17, in Babel-17
Babel-17
Babel-17 is a 1966 science fiction novel by American writer Samuel R. Delany in which the Sapir–Whorf Hypothesis plays an important part...

by Samuel R. Delany
Samuel R. Delany
Samuel Ray Delany, Jr., also known as "Chip" is an American author, professor and literary critic. His work includes a number of novels, many in the science fiction genre, as well as memoir, criticism, and essays on sexuality and society.His science fiction novels include Babel-17, The Einstein...
Baronh
Baronh
Baronh is a fictional language created by Japanese science fiction author Morioka Hiroyuki and used in Crest of the Stars and Banner of the Stars...

, language of Abh in Seikai no Monsho (Crest of the Stars
Crest of the Stars
is a three-volume space opera science fiction novel written by Hiroyuki Morioka with cover illustrations by Toshihiro Ono. Beginning in 1999, the novels were adapted into anime series, the first of which ran for 13 episodes on WOWOW...

) and others, by Morioka Hiroyuki
Black Speech
Black Speech
The Black Speech is a fictional language created by J. R. R. Tolkien.One of the languages of Arda in Tolkien's Middle-earth legendarium, it was spoken in the realm of Mordor...

- language of Mordor
Mordor
In J. R. R. Tolkien's fictional universe of Middle-earth, Mordor or Morhdorh was the dwelling place of Sauron, in the southeast of northwestern Middle-earth to the East of Anduin, the great river. Orodruin, a volcano in Mordor, was the destination of the Fellowship of the Ring in the quest to...

in The Lord of the Rings
The Lord of the Rings
The Lord of the Rings is a high fantasy epic written by English philologist and University of Oxford professor J. R. R. Tolkien. The story began as a sequel to Tolkien's earlier, less complex children's fantasy novel The Hobbit , but eventually developed into a much larger work. It was written in...

by J. R. R. Tolkien
J. R. R. Tolkien
John Ronald Reuel Tolkien, CBE was an English writer, poet, philologist, and university professor, best known as the author of the classic high fantasy works The Hobbit, The Lord of the Rings, and The Silmarillion.Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College,...
Bokonon - language of the Bokononism religion in Kurt Vonnegut's Cat's Cradle
Cat's Cradle
Cat's Cradle is the fourth novel by American writer Kurt Vonnegut, first published in 1963. It explores issues of science, technology, and religion, satirizing the arms race and many other targets along the way...

.
Codex Seraphinianus
Codex Seraphinianus
Codex Seraphinianus is a book written and illustrated by the Italian artist, architect and industrial designer Luigi Serafini during thirty months, from 1976 to 1978...

by Luigi Serafini
Luigi Serafini
Luigi Serafini is an Italian artist, architect and designer. He is best known for creating the Codex Seraphinianus, an illustrated encyclopedia of imaginary things in a constructed language...

appears to be written in a constructed language which is presumably the language of the alien civilization the book describes.
Chapalli - language of the aliens in Kate Elliott
Kate Elliott
Kate Elliott is the pen name of American fantasy and science fiction writer Alis A. Rasmussen .-Writing:Although Rasmussen's first novels The Labyrinth Gate and The Highroad failed to become bestsellers, additional publishers liked her manuscripts but wanted a fresh name unconnected with the...

's "Jaran" series, notable for incorporating hand signals to supplement oral meaning and multiple levels of formality used in different parts of a social hierarchy, like Japanese
Japanese language
is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is a member of the Japonic language family, which has a number of proposed relationships with other languages, none of which has gained wide acceptance among historical linguists .Japanese is an...

, described from the point of view of a protagonist who is a linguist.
Common Eldarin
Common Eldarin
Common Eldarin, or simply Eldarin, is a constructed language devised by J. R. R. Tolkien. It is one of the many fictional language set in his Secondary world, often called Middle-earth....

from J. R. R. Tolkien
J. R. R. Tolkien
John Ronald Reuel Tolkien, CBE was an English writer, poet, philologist, and university professor, best known as the author of the classic high fantasy works The Hobbit, The Lord of the Rings, and The Silmarillion.Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College,...

's works
High D'Haran - the ancient, dead language of pre-Great War New World in Terry Goodkind
Terry Goodkind
Terry Goodkind is an American writer and author of the epic fantasy The Sword of Truth series as well as the contemporary suspense novel The Law of Nines, which has ties to his fantasy series, and The Omen Machine, which is a direct sequel thereof. Before his success as an author Goodkind worked...

's The Sword of Truth
The Sword of Truth
The Sword of Truth is a series of thirteen epic fantasy novels written by Terry Goodkind. The books follow the protagonists Richard Cypher, Kahlan Amnell and Zeddicus Zu'l Zorander on their quest to defeat oppressors who seek to control the world and those who wish to unleash evil upon the world of...

series.
Dahmek, language spoken on Eho Dahma, a planet with a double-ended spoon-shaped orbit and populated exclusively of women in a binary star system from K Gerard Martin's Carreña book series.
Drac
Drac
Drac, from the Latin draco, is the word for dragon or devil in several languages, such as Catalan and Romanian.Drac or DRAC may also refer to:* Drac, abbreviation for the orchid genus Dracula...

, language of the alien species in Barry B. Longyear
Barry B. Longyear
Barry B. Longyear born 1942 is a US writer and novelist who resides in Maine.-Career:He is best known for the Hugo and Nebula Award winning novella Enemy Mine, which was subsequently made into an identically titled movie and a novelization in collaboration with David Gerrold. The story tells of an...

's Enemy Mine
Enemy Mine
-Plot:Willis Davidge, a human fighter pilot, is stranded along with Jeriba Shigan, a Drac, on a hostile planet. The Drac are a race of aliens which are reptilian in appearance and reproduce asexually...

and The Enemy Papers
The Enemy Papers
The Enemy Papers is a short story collection by Barry B. Longyear containing the novella "Enemy Mine," later made into a feature-length film of the same name, along with two sequels: "The Last Enemy" and "The Tomorrow Testament." The volume also contains excerpts from the Drac holy book, a...
From Ursula K. Le Guin
Ursula K. Le Guin
Ursula Kroeber Le Guin is an American author. She has written novels, poetry, children's books, essays, and short stories, notably in fantasy and science fiction...

's Earthsea
Earthsea
Earthsea is a fictional realm originally created by Ursula K. Le Guin for her short story "The Word of Unbinding", published in 1964. Earthsea became the setting for a further six books, beginning with A Wizard of Earthsea, first published in 1968, and continuing with The Tombs of Atuan, The...

books:
- Language of the Making - the basis of all magic, spoken by Dragon
  Dragon
  A dragon is a legendary creature, typically with serpentine or reptilian traits, that feature in the myths of many cultures. There are two distinct cultural traditions of dragons: the European dragon, derived from European folk traditions and ultimately related to Greek and Middle Eastern...
  
  s as their native tongue and learned with considerable effort by human mages.
- Hardic - linguistically descended from the above
- Osskilian, and Kargish - a different family of languages, distantly related
Elemeno, language of two sisters in Caucasia by Danzy Senna
Danzy Senna
-Biography:Danzy Senna was born in Boston, Massachusetts, the middle child of three children. Her mother is the Anglo-American poet and novelist Fanny Howe. Her father is the African-American writer and journalist, Carl Senna, author of The Black Press and the Struggle for Civil Rights and The...

.
"Expanded English" or "World English", spoken throughout the world in the 22nd century in the Utopian world of H.G.Wells's The Shape of Things to Come
The Shape of Things to Come
The Shape of Things to Come is a work of science fiction by H. G. Wells, published in 1933, which speculates on future events from 1933 until the year 2106. The book is dominated by Wells's belief in a world state as the solution to mankind's problems....

.
The Giant's Fence by Michael Jacobson. (http://dbqp.blogspot.com/2007/03/sans-teeth-sans-eyes-sans-taste-sans.html)
Goodenuf English, a form of English used by foreigners in the novel Rainbows End
Rainbows End
Rainbows End is a 2006 science fiction novel by Vernor Vinge. It was awarded the 2007 Hugo Award for Best Novel. The book is set in San Diego, California, in 2025, in a variation of the fictional world Vinge explored in his 2002 Hugo-winning novella "Fast Times at Fairmont High" and 2004's...

by Vernon Vinge
Glide, created by Diana Reed Slattery, used by the Death Dancers of The Maze Game
Groilish, spoken by giant
Giant (mythology)
The mythology and legends of many different cultures include monsters of human appearance but prodigious size and strength. "Giant" is the English word commonly used for such beings, derived from one of the most famed examples: the gigantes of Greek mythology.In various Indo-European mythologies,...

s in Giants and the Joneses by Julia Donaldson
Julia Donaldson
Julia Catherine Donaldson MBE is an English writer and playwright, best known as author of The Gruffalo and other children's books, many illustrated by Axel Scheffler. Of her 157 published works, 56 are widely available in bookshops...

.
Gnomish, also Goldogrin
Goldogrin
Goldogrin is a constructed language devised by J. R. R. Tolkien and used in his secondary world, often called Middle-earth. Goldogrin was spoken by the Second Clan of Elves, called Goldorim in that language, Gnomes in English .- External history :Tolkien was interested in languages from an early...

from J. R. R. Tolkien
J. R. R. Tolkien
John Ronald Reuel Tolkien, CBE was an English writer, poet, philologist, and university professor, best known as the author of the classic high fantasy works The Hobbit, The Lord of the Rings, and The Silmarillion.Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College,...

's works.
Gnommish, spoken by the fairies in Eoin Colfer's Artemis Fowl series
Artemis Fowl (series)
Artemis Fowl is a series of fantasy novels written by Irish author Eoin Colfer and all the books are best sellers, starring the teenage criminal mastermind Artemis Fowl II. The author summed up the series as: "Die Hard with fairies." There are seven novels in the series; the first was published in...

.
Gobbledegook is a language spoken by the goblins in the Harry Potter
Harry Potter
Harry Potter is a series of seven fantasy novels written by the British author J. K. Rowling. The books chronicle the adventures of the adolescent wizard Harry Potter and his best friends Ron Weasley and Hermione Granger, all of whom are students at Hogwarts School of Witchcraft and Wizardry...

series by J.K. Rowling.
High Speech of Gilead from Stephen King's The Dark Tower
The Dark Tower (series)
The Dark Tower is a series of books written by American author Stephen King, which incorporates themes from multiple genres, including fantasy, science fantasy, horror and western. It describes a "Gunslinger" and his quest toward a tower, the nature of which is both physical and metaphorical. King...
Kesh, in Ursula K. Le Guin
Ursula K. Le Guin
Ursula Kroeber Le Guin is an American author. She has written novels, poetry, children's books, essays, and short stories, notably in fantasy and science fiction...

's novel Always Coming Home
Always Coming Home
Always Coming Home is a novel by Ursula K. Le Guin published in 1985. This novel is about a cultural group of humans—the Kesh—who "might be going to have lived a long, long time from now in Northern California." Always Coming Home is a novel by Ursula K. Le Guin published in 1985. This novel is...
Khuzdul
Khuzdul
Khuzdul is a constructed language devised by J. R. R. Tolkien. It is one of the many fictional language set in his Secondary world, often called Middle-earth...

from J. R. R. Tolkien
J. R. R. Tolkien
John Ronald Reuel Tolkien, CBE was an English writer, poet, philologist, and university professor, best known as the author of the classic high fantasy works The Hobbit, The Lord of the Rings, and The Silmarillion.Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College,...

's works
Krakish, in Guardians of Ga'Hoole
Guardians of Ga'Hoole
Guardians of Ga’Hoole is a fantasy book series written by Kathryn Lasky and published by Scholastic. The series, which ended in 2008 with the publication of The War of the Ember, has a total of fifteen books. Apart from the main series there are a few more books and spin offs set in the same universe...

by Kathryn Lasky
Kathryn Lasky
Kathryn Lasky is an American author whose work includes several Dear America books, The Royal Diaries books, Sugaring Time, The Night Journey, and the Guardians of Ga'Hoole series.-Biography:...
Láadan (ldn), in Suzette Haden Elgin
Suzette Haden Elgin
Suzette Haden Elgin is an American science fiction author. She founded the Science Fiction Poetry Association, and is considered an important figure in the field of science fiction constructed languages...

's science fiction novel Native Tongue and sequels
Lapine
Lapine language
Lapine is a fictional language created by author Richard Adams for his 1972 novel Watership Down, where it is spoken by fictional rabbit characters. The fragments of language presented by Adams consist of a few dozen distinct words, and are chiefly used for the naming of rabbits, their mythological...

, in Watership Down
Watership Down
Watership Down is a classic heroic fantasy novel, written by English author Richard Adams, about a small group of rabbits. Although the animals in the story live in their natural environment, they are anthropomorphised, possessing their own culture, language , proverbs, poetry, and mythology...

by Richard Adams
Linyaari spoken by the Linyaari people of Vhiliinyar in Anne McCaffery's Acorna
Acorna
Acorna is a "Unicorn Girl", a fantasy fiction character created by Anne McCaffrey and Margaret Ball in their novel Acorna: The Unicorn Girl ....

series.
Mando'a, created by Karen Traviss
Karen Traviss
Karen Traviss is a science fiction author, and full-time novelist from Wiltshire, England. Originally from the Portsmouth area, Traviss worked as both a journalist and defence correspondent before turning her attention to writing fiction. She also served in both the Territorial Army and the Royal...

, used by the Mandalorian
Mandalorian
Mandalorians are a fictional group of warriors from several races in the Star Wars universe. They commonly act as mercenaries or bounty hunters. According to Star Wars Expanded Universe material, they are the cultural descendants of an extinct race called the Taung...

s in the Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

Republic Commando novels Hard Contact
Star Wars Republic Commando: Hard Contact
Republic Commando: Hard Contact is the tie-in novel to the video game Republic Commando, written by Karen Traviss.-Plot:The story begins during the Battle of Geonosis with Clone Commando Darman and his team assaulting a Separatist position. However, the entire squad is massacred in the attack, with...

and Triple Zero
Star Wars Republic Commando: Triple Zero
Star Wars Republic Commando: Triple Zero, by Karen Traviss, is the second novel in the Star Wars Republic Commando series. The title comes from the galactic coordinates of the planet Coruscant .-Plot:...
Marain, in The Culture
The Culture
The Culture is a fictional interstellar anarchist, socialist, and utopian society created by the Scottish writer Iain M. Banks which features in a number of science fiction novels and works of short fiction by him, collectively called the Culture series....

novels of Iain M. Banks
The Martian language in Percy Greg
Percy Greg
Percy Greg , son of William Rathbone Greg, was an English writer....

's Across the Zodiac
Across The Zodiac
Across the Zodiac: The Story of a Wrecked Record is a science fiction novel by Percy Greg, who has been credited as an originator of the Sword and planet sub-genre of science fiction.- Plot :...

may have been the first fictional language described using linguistic and grammatical terminology.
The Matoran language used by the various sentient species in Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

. It is named after its creators the Matoran species.
Miramish, language spoken on Eho Miriam, a planet with a rounded box-shaped orbit and populated exclusively of women in a binary star system from K Gerard Martin's Carreña book series.
Mirsua, a power language derived from Miramish, languages spoken on planet Eho Miriam from K Gerard Martin's Carreña book series.
Molvania
Molvanîa
Molvanîa: a Land Untouched by Modern Dentistry is a book parodying travel guidebooks. The guide describes the fictional country Molvanîa, in Eastern Europe, a nation described as "the birthplace of the whooping cough" and "owner of Europe's oldest nuclear reactor"...

n from Molvania
Molvanîa
Molvanîa: a Land Untouched by Modern Dentistry is a book parodying travel guidebooks. The guide describes the fictional country Molvanîa, in Eastern Europe, a nation described as "the birthplace of the whooping cough" and "owner of Europe's oldest nuclear reactor"...

, A Land Untouched By Modern Dentistry
Nadsat
Nadsat
Nadsat is a fictional register or argot used by the teenagers in Anthony Burgess' novel A Clockwork Orange. In addition to being a novelist, Burgess was also a linguist and he used this background to depict his characters as speaking a form of Russian-influenced English...

slang, in A Clockwork Orange
A Clockwork Orange
A Clockwork Orange is a 1962 dystopian novella by Anthony Burgess. The novel contains an experiment in language: the characters often use an argot called "Nadsat", derived from Russian....

by Anthony Burgess
Anthony Burgess
John Burgess Wilson – who published under the pen name Anthony Burgess – was an English author, poet, playwright, composer, linguist, translator and critic. The dystopian satire A Clockwork Orange is Burgess's most famous novel, though he dismissed it as one of his lesser works...
Newspeak
Newspeak
Newspeak is a fictional language in George Orwell's novel Nineteen Eighty-Four. In the novel, it refers to the deliberately impoverished language promoted by the state. Orwell included an essay about it in the form of an appendix in which the basic principles of the language are explained...

, in Nineteen Eighty-Four
Nineteen Eighty-Four
Nineteen Eighty-Four by George Orwell is a dystopian novel about Oceania, a society ruled by the oligarchical dictatorship of the Party...

by George Orwell
George Orwell
Eric Arthur Blair , better known by his pen name George Orwell, was an English author and journalist...

(fictional constructed language)
The "Nautilus
Nautilus (Verne)
The Nautilus is the fictional submarine featured in Jules Verne's novels Twenty Thousand Leagues Under the Sea and The Mysterious Island . Verne named the Nautilus after Robert Fulton's real-life submarine Nautilus...

Language", spoken on board Jules Verne
Jules Verne
Jules Gabriel Verne was a French author who pioneered the science fiction genre. He is best known for his novels Twenty Thousand Leagues Under the Sea , A Journey to the Center of the Earth , and Around the World in Eighty Days...

's famous fictional submarine, in token of crew members having completely renounced their former homelands and backgrounds. Every morning, after scanning the horizon with his binoculars, Nemo's second-in-command says: "Nautron respoc lorni virch". The meaning of these words is never clarified, but their construction seems to indicate that the "Nautilus Language" (its actual name is not given) is based on European languages.
Nimiash, language spoken on Nimsant, a distant prison planet in a binary star system from K Gerard Martin's Carreña book series.
Old Solar, in Out of the Silent Planet
Out of the Silent Planet
Out of the Silent Planet is the first novel of a science fiction trilogy written by C. S. Lewis, sometimes referred to as the Space Trilogy, Ransom Trilogy or Cosmic Trilogy. The other volumes are Perelandra and That Hideous Strength, and a fragment of a sequel was published posthumously as The...

, Perelandra
Perelandra
Perelandra is the second book in the Space Trilogy of C. S. Lewis, set in the Field of Arbol...

, and That Hideous Strength
That Hideous Strength
That Hideous Strength is a 1945 novel by C. S. Lewis, the final book in Lewis's theological science fiction Space Trilogy. The events of this novel follow those of Out of the Silent Planet and Perelandra and once again feature the philologist Elwin Ransom...

by C. S. Lewis
C. S. Lewis
Clive Staples Lewis , commonly referred to as C. S. Lewis and known to his friends and family as "Jack", was a novelist, academic, medievalist, literary critic, essayist, lay theologian and Christian apologist from Belfast, Ireland...
The Old Language from Stephen King
Stephen King
Stephen Edwin King is an American author of contemporary horror, suspense, science fiction and fantasy fiction. His books have sold more than 350 million copies and have been adapted into a number of feature films, television movies and comic books...

's The Dark Tower
The Dark Tower (series)
The Dark Tower is a series of books written by American author Stephen King, which incorporates themes from multiple genres, including fantasy, science fantasy, horror and western. It describes a "Gunslinger" and his quest toward a tower, the nature of which is both physical and metaphorical. King...

series.
The Old Tongue
Old Tongue
The Old Tongue is a fictional language from Robert Jordan's The Wheel of Time fantasy series. It is depicted as a now-dead language, spoken only by scholars and certain nobles, but still plays a role in the plot of the books.-History:...

from Robert Jordan
Robert Jordan
Robert Jordan was the pen name of James Oliver Rigney, Jr. , under which he was best known as the author of the bestselling The Wheel of Time fantasy series. He also wrote under the pseudonyms Reagan O'Neal and Jackson O'Reilly.-Biography:Jordan was born in Charleston, South Carolina...

's Wheel of Time
The Wheel of Time
The Wheel of Time is a series of epic fantasy novels written by American author James Oliver Rigney, Jr., under the pen name Robert Jordan. Originally planned as a six-book series, the length was increased by increments; at the time of Rigney's death, he expected it to be 12, but it will actually...

series
Orghast
Orghast
Orghast was a strange rambling play, based on the myth of Prometheus, written by Peter Brook and Ted Hughes, and performed at Persepolis, Iran, in 1971 during the reign of the last Shah.-Mythic play at Persepolis:...

from the Peter Brooks
Peter Brooks
Peter Brooks is Sterling Professor Emeritus of Comparative Literature at Yale University and Andrew W. Mellon Scholar in the department of Comparative Literature and the Center for Human Values at Princeton University. He is formerly Professor in the Department of English and School of Law at the...

production of the same name invented for the Shiraz/Persepolis festival in Iran
Iran
Iran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...

in celebration of the Persian state
Parseltongue, the language of snake
Snake
Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales...

s, in the Harry Potter
Harry Potter
Harry Potter is a series of seven fantasy novels written by the British author J. K. Rowling. The books chronicle the adventures of the adolescent wizard Harry Potter and his best friends Ron Weasley and Hermione Granger, all of whom are students at Hogwarts School of Witchcraft and Wizardry...

series. The ability of humans to speak it is considered a magic
Magic (Harry Potter)
In the Harry Potter series created by J. K. Rowling, magic is depicted as a natural force that can be used to override the usual laws of nature. Many fictional magical creatures exist in the series, while ordinary creatures sometimes exhibit new magical properties in the novels' world...

ability.
Pravic
Pravic
Pravic is a fictional language used and referred to in the science-fiction book The Dispossessed, by Ursula K. Le Guin. Pravic is a fictional constructed language: in the book, it is said to have been constructed by a person named Farigv...

and Iotic
Iotic
Iotic is also a fictional language in the Saga of the Skolian Empire books by Catherine Asaro.Iotic is one of the fictional languages used and referred to in the science-fiction book The Dispossessed, by Ursula K. Le Guin...

, in The Dispossessed
The Dispossessed
The Dispossessed: An Ambiguous Utopia is a 1974 utopian science fiction novel by Ursula K. Le Guin, set in the same fictional universe as that of The Left Hand of Darkness . The book won the Nebula Award for Best Novel in 1974, both the Hugo and Locus Awards in 1975, and received a nomination for...

by Ursula K. Le Guin
Ursula K. Le Guin
Ursula Kroeber Le Guin is an American author. She has written novels, poetry, children's books, essays, and short stories, notably in fantasy and science fiction...
Ptydepe
Ptydepe
Ptydepe is a fictional artificial language featuring in Czech playwright Václav Havel's 1966 play The Memorandum. The play concerns the events that unfold when Ptydepe is introduced as the new official language of an unspecified organization...

, from Václav Havel
Václav Havel
Václav Havel is a Czech playwright, essayist, poet, dissident and politician. He was the tenth and last President of Czechoslovakia and the first President of the Czech Republic . He has written over twenty plays and numerous non-fiction works, translated internationally...

's play The Memorandum
The Memorandum
-Plot:Josef Gross, a director of an unnamed organization, receives a memorandum written in Ptydepe, a constructed language, about an audit. He finds out that Ptydepe was created to get rid of similarities between words, such as fox and box, and emotional connexions. He tries to get someone to...
Quintaglio from Robert J. Sawyer
Robert J. Sawyer
Robert James Sawyer is a Canadian science fiction writer. He has had 20 novels published, and his short fiction has appeared in Analog Science Fiction and Fact, Amazing Stories, On Spec, Nature, and many anthologies. Sawyer has won over forty awards for his fiction, including the Nebula Award ,...

's Quintaglio Ascension Trilogy
Quintaglio Ascension Trilogy
The Quintaglio Ascension Trilogy is a series of award-winning novels written by acclaimed Canadian science fiction author, Robert J. Sawyer...
Quenya
Quenya
Quenya is a fictional language devised by J. R. R. Tolkien, and used in his Secondary world, often called Middle-earth.Quenya is one of the many Elvish languages spoken by the immortal Elves, called Quendi in Quenya. The tongue actually called Quenya was in origin the speech of two clans of Elves...

from J. R. R. Tolkien
J. R. R. Tolkien
John Ronald Reuel Tolkien, CBE was an English writer, poet, philologist, and university professor, best known as the author of the classic high fantasy works The Hobbit, The Lord of the Rings, and The Silmarillion.Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College,...

's works.
Qwghlmian from Neal Stephenson
Neal Stephenson
Neal Town Stephenson is an American writer known for his works of speculative fiction.Difficult to categorize, his novels have been variously referred to as science fiction, historical fiction, cyberpunk, and postcyberpunk...

's Cryptonomicon
Cryptonomicon
Cryptonomicon is a 1999 novel by American author Neal Stephenson. The novel follows the exploits of two groups of people in two different time periods, presented in alternating chapters...

and The Baroque Cycle
The Baroque Cycle
The Baroque Cycle is a series of novels by American writer Neal Stephenson. It was published in three volumes containing 8 books in 2003 and 2004. The story follows the adventures of a sizeable cast of characters living amidst some of the central events of the late 17th and early 18th centuries in...
Rihannsu, spoken by the Rihannsu (Romulan
Romulan
The Romulans are a fictional alien race in the Star Trek universe. First appearing in the original Star Trek series in the 1966 episode "Balance of Terror", they have since made appearances in all the main later Star Trek series: The Animated Series, The Next Generation, Deep Space Nine, Voyager...

s) in the Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

novels of Diane Duane
Diane Duane
Diane Duane is an American science fiction and fantasy author. Her works include the Young Wizards young adult fantasy series and the Rihannsu Star Trek novels.-Biography :...
Spocanian
Spocanian
Spocanian is a constructed language, created by the Dutch linguist Rolandt Tweehuysen. Unlike such invented languages as Esperanto, Spocanian was never intended to be used for international communication; instead, it serves as the language of Spocania, a fictional island group in the Atlantic...

, in Rolandt Tweehuysen's fictional country Spocania
Sindarin
Sindarin
Sindarin is a fictional language devised by J. R. R. Tolkien, and used in his secondary world, often called Middle-earth.Sindarin is one of the many languages spoken by the immortal Elves, called the Eledhrim or Edhellim in Sindarin....

from J. R. R. Tolkien
J. R. R. Tolkien
John Ronald Reuel Tolkien, CBE was an English writer, poet, philologist, and university professor, best known as the author of the classic high fantasy works The Hobbit, The Lord of the Rings, and The Silmarillion.Tolkien was Rawlinson and Bosworth Professor of Anglo-Saxon at Pembroke College,...

's works.
The Speech, a universal language
Universal language
Universal language may refer to a hypothetical or historical language spoken and understood by all or most of the world's population. In some circles, it is a language said to be understood by all living things, beings, and objects alike. It may be the ideal of an international auxiliary language...

in Diane Duane
Diane Duane
Diane Duane is an American science fiction and fantasy author. Her works include the Young Wizards young adult fantasy series and the Rihannsu Star Trek novels.-Biography :...

's books.
Speedtalk
Speedtalk
Speedtalk is a fictional constructed language and key plot device in Robert A. Heinlein's novella Gulf . Speedtalk was a logic-based language with complex syntax, minimal vocabulary, and a rich phoneme inventory ; it would make both communication and thought more efficient and precise...

, a highly logical and compressed language in Robert A. Heinlein
Robert A. Heinlein
Robert Anson Heinlein was an American science fiction writer. Often called the "dean of science fiction writers", he was one of the most influential and controversial authors of the genre. He set a standard for science and engineering plausibility and helped to raise the genre's standards of...

's novella Gulf
Gulf (Heinlein)
Gulf is a novella by Robert A. Heinlein, originally published as a serial in the November and December 1949 issues of Astounding Science Fiction. It concerns a secret society of geniuses who act to protect humanity...

.
Stark (short for Star Common), a common interstellar English-based language from Orson Scott Card
Orson Scott Card
Orson Scott Card is an American author, critic, public speaker, essayist, columnist, and political activist. He writes in several genres, but is primarily known for his science fiction. His novel Ender's Game and its sequel Speaker for the Dead both won Hugo and Nebula Awards, making Card the...

's Ender
Ender Wiggin
Andrew "Ender" Wiggin is a fictional character from Orson Scott Card's science fiction story Ender's Game and its sequels , as well as in the first part of the spin-off series, Ender's Shadow...

series
Starsza Mowa
Starsza Mowa
Starsza Mowa is a language created by Andrzej Sapkowski for series of fantasy short stories and novels The Witcher. It is based on English, French, Welsh, Irish, Latin and other languages. One of the most important dialects is the one from the Skellige islands....

from Andrzej Sapkowski
Andrzej Sapkowski
Andrzej Sapkowski, born 21 June 1948 in Łódź, is a Polish fantasy writer. He is best known for his best-selling book series The Witcher.-Biography:...

's Hexer saga
Troll
Troll (Discworld)
Trolls in Terry Pratchett's Discworld novels, unlike the monstrous trolls of folklore and J. R. R. Tolkien, have been subverted into a moderately civilised race. Trolls on the Discworld are, essentially, living, mobile rocks...

language from Terry Pratchett
Terry Pratchett
Sir Terence David John "Terry" Pratchett, OBE is an English novelist, known for his frequently comical work in the fantasy genre. He is best known for his popular and long-running Discworld series of comic fantasy novels...

's Discworld
Discworld
Discworld is a comic fantasy book series by English author Sir Terry Pratchett, set on the Discworld, a flat world balanced on the backs of four elephants which, in turn, stand on the back of a giant turtle, Great A'Tuin. The books frequently parody, or at least take inspiration from, J. R. R....
Trinary, a language used by Neo-Dolphins and sometimes Humans, in David Brin
David Brin
Glen David Brin, Ph.D. is an American scientist and award-winning author of science fiction. He has received the Hugo, Locus, Campbell and Nebula Awards.-Biography:...

's Uplift Trilogies
Utopian language
Utopian language
The Utopian language is the language of the fictional land of Utopia, as described in Thomas More's Utopia. A brief sample of the constructed language is found in an addendum to More's book, written by his good friend Peter Giles...

, appearing in a poem by Petrus Gilles accompanying Thomas More
Thomas More
Sir Thomas More , also known by Catholics as Saint Thomas More, was an English lawyer, social philosopher, author, statesman and noted Renaissance humanist. He was an important councillor to Henry VIII of England and, for three years toward the end of his life, Lord Chancellor...

's Utopia
Whitman
Walt Whitman
Walter "Walt" Whitman was an American poet, essayist and journalist. A humanist, he was a part of the transition between transcendentalism and realism, incorporating both views in his works. Whitman is among the most influential poets in the American canon, often called the father of free verse...

ite, spoken by members of a radical Anarchist-Pacifist cult of the same name in Robert A. Heinlein
Robert A. Heinlein
Robert Anson Heinlein was an American science fiction writer. Often called the "dean of science fiction writers", he was one of the most influential and controversial authors of the genre. He set a standard for science and engineering plausibility and helped to raise the genre's standards of...

' The Puppet Masters
The Puppet Masters
The Puppet Masters is a 1951 science fiction novel by Robert A. Heinlein in which American secret agents battle parasitic invaders from outer space...

.
Zaum
Zaum
Zaum is a word used to describe the linguistic experiments in sound symbolism and language creation of Russian Futurist poets such as Velimir Khlebnikov and Aleksei Kruchenykh....

, poetic tongue elaborated by Velimir Khlebnikov
Velimir Khlebnikov
Velimir Khlebnikov , pseudonym of Viktor Vladimirovich Khlebnikov , was a central part of the Russian Futurist movement, but his work and influence stretch far beyond it.Khlebnikov belonged to Hylaea,...

, Aleksei Kruchonykh, and other Russian Futurists as a "transrational" and "most universal" language "of songs, incantations, and curses".
Zamgrh, spoken by Zombies in the Urban Dead
Urban Dead
Urban Dead is a Free To Play HTML/text-based massively multiplayer online role-playing game created by Kevan Davis. Set in a quarantined region of the fictional city of Malton, it deals with the aftermath of a zombie outbreak. Players enter the game either as a survivor or a zombie, each with...

games, and worked out in considerable detail (see http://wiki.urbandead.com/index.php/Zamgrh).
Several languages spoken by Panurge
Panurge
Panurge is one of the principal characters in the Pantagruel of Rabelais, an exceedingly crafty knave, a libertine, and a coward....

in François Rabelais
François Rabelais
François Rabelais was a major French Renaissance writer, doctor, Renaissance humanist, monk and Greek scholar. He has historically been regarded as a writer of fantasy, satire, the grotesque, bawdy jokes and songs...

' Pantagruel
Gargantua and Pantagruel
The Life of Gargantua and of Pantagruel is a connected series of five novels written in the 16th century by François Rabelais. It is the story of two giants, a father and his son and their adventures, written in an amusing, extravagant, satirical vein...

(1532)
The Time Machine
The Time Machine
The Time Machine is a science fiction novella by H. G. Wells, published in 1895 for the first time and later adapted into at least two feature films of the same name, as well as two television versions, and a large number of comic book adaptations. It indirectly inspired many more works of fiction...

featured an unnamed language for the Eloi people
Eloi language
Eloi language is a constructed language spoken by Eloi people in the 2002 movie The Time machine. For use in the movie it was created by screenwriter John Logan...

.
Jack Womack
Jack Womack
Jack Womack is an American author of fiction and speculative fiction. He lives in New York City with his wife and daughter, and works as a publicity manager for the Orbit and Yen imprints of Hachette Book Group USA....

's Dryco novels feature a future form of English with a modified grammar.

Comic books

Bordurian
Bordurian
Bordurian is a fictional language, the national language of Borduria, a fictional Balkan dictatorship created by Hergé for the Tintin comics series. Little is known about Bordurian, as it is not extensively presented in the Tintin stories...

in some of Hergé
Hergé
Georges Prosper Remi , better known by the pen name Hergé, was a Belgian comics writer and artist. His best known and most substantial work is the 23 completed comic books in The Adventures of Tintin series, which he wrote and illustrated from 1929 until his death in 1983, although he was also...

's The Adventures of Tintin
The Adventures of Tintin
The Adventures of Tintin is a series of classic comic books created by Belgian artist , who wrote under the pen name of Hergé...

, mostly in The Calculus Affair
The Calculus Affair
The Calculus Affair is the eighteenth of The Adventures of Tintin, a series of classic comic-strip albums, written and illustrated by Belgian writer and illustrator Hergé, featuring young reporter Tintin as a hero....
Syldavian
Syldavian
Syldavian is a fictional West Germanic language created by Hergé as the national language of Syldavia, a small fictional Balkan kingdom that serves as a major setting in some Tintin stories. Hergé modeled the language on Marols, a dialect of Dutch spoken in and around Brussels...

, in some of Hergé
Hergé
Georges Prosper Remi , better known by the pen name Hergé, was a Belgian comics writer and artist. His best known and most substantial work is the 23 completed comic books in The Adventures of Tintin series, which he wrote and illustrated from 1929 until his death in 1983, although he was also...

's The Adventures of Tintin
The Adventures of Tintin
The Adventures of Tintin is a series of classic comic books created by Belgian artist , who wrote under the pen name of Hergé...

, mostly in King Ottokar's Sceptre
King Ottokar's Sceptre
King Ottokar's Sceptre is the eighth of The Adventures of Tintin, a series of classic comic-strip albums, written and illustrated by Belgian writer and illustrator Hergé, featuring the young reporter Tintin. It was first serialized as a black-and-white comic strip in Le Petit Vingtième on 4 August...

Movies and television

Adspeak in The Year of the Sex Olympics
The Year of the Sex Olympics
The Year of the Sex Olympics is a 1968 television play made by the BBC and first broadcast on BBC2 as part of Theatre 625. It stars Leonard Rossiter, Tony Vogel, Suzanne Neve and Brian Cox. It was directed by Michael Elliot...

(by Nigel Kneale
Nigel Kneale
Nigel Kneale was a British screenwriter from the Isle of Man. Active in television, film, radio drama and prose fiction, he wrote professionally for over fifty years, was a winner of the Somerset Maugham Award and was twice nominated for the British Film Award for Best Screenplay...

) is a Newspeak
Newspeak
Newspeak is a fictional language in George Orwell's novel Nineteen Eighty-Four. In the novel, it refers to the deliberately impoverished language promoted by the state. Orwell included an essay about it in the form of an appendix in which the basic principles of the language are explained...

-like impoverished language derived from 60s and 70s British advertising vocabulary.
Ancient
Ancient (Stargate)
The Ancients are a humanoid race in the fictional Stargate universe. They are called "Ancients" in the Milky Way, but are also known as Lanteans or Ancestors in the Pegasus galaxy and as the Alterans in their home galaxy, and they sometimes call themselves Anquietas in their language...

in the Stargate
Stargate
Stargate is a adventure military science fiction franchise, initially conceived by Roland Emmerich and Dean Devlin. The first film in the franchise was simply titled Stargate. It was originally released on October 28, 1994, by Metro-Goldwyn-Mayer and Carolco, and became a hit, grossing nearly...

universe (i.e. Stargate SG-1
Stargate SG-1
Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

and Stargate Atlantis
Stargate Atlantis
Stargate Atlantis is a Canadian-American adventure and military science fiction television series and part of MGM's Stargate franchise. The show was created by Brad Wright and Robert C. Cooper as a spin-off series of Stargate SG-1, which was created by Wright and Jonathan Glassner and was itself...

) is the language of the Ancients, the builders of the Stargates
Stargate (device)
A Stargate is a portal device within the Stargate fictional universe that allows practical, rapid travel between two distant locations. The devices first appear in the 1994 Roland Emmerich film Stargate, and thereafter in the television series Stargate SG-1 and its spin-offs...

; it is similar in pronunciation to Medieval Latin
Medieval Latin
Medieval Latin was the form of Latin used in the Middle Ages, primarily as a medium of scholarly exchange and as the liturgical language of the medieval Roman Catholic Church, but also as a language of science, literature, law, and administration. Despite the clerical origin of many of its authors,...

. The Athosians say prayers in Ancient. (However, when shown onscreen, written Ancient is simply a different character set for English)
Atlantean
Atlantean language
The Atlantean language is a constructed language created by Marc Okrand for Disney's film Atlantis: The Lost Empire. The language was intended as a possible "mother language" and was therefore crafted to include a vast Indo-European word stock with its very own grammar, which is at times described...

created by Marc Okrand
Marc Okrand
Marc Okrand is an American linguist and is most notable as the creator of the Klingon language, which he speaks.-Biography:Okrand worked with Native American languages. He earned a bachelor's degree from the University of California, Santa Cruz in 1972...

for the film Atlantis: The Lost Empire
Atlantis: The Lost Empire
Atlantis: The Lost Empire is a 2001 American animated film produced by Walt Disney Feature Animation. Written by Tab Murphy, directed by Gary Trousdale and Kirk Wise, and produced by Don Hahn, it is the first science fiction film in the Disney animated features canon and the 41st overall. The film...
The Divine Language is a language invented by director Luc Besson
Luc Besson
Luc Besson is a French film director, writer, and producer. He is the creator of EuropaCorp film company. He has been involved with over 50 films, spanning 26 years, as writer, director, and/or producer.-Early life:...

and actress Milla Jovovich
Milla Jovovich
Milla Jovovich December 17, 1975)is an American model, actress, musician, and fashion designer. Over her career, she has appeared in a number of science fiction and action-themed films, for which music channel VH1 has referred to her as the "reigning queen of kick-butt".Milla Jovovich began...

for the 1997 movie The Fifth Element
The Fifth Element
The Fifth Element is a 1997 French science fiction film directed, co-written, and based on a story by Luc Besson, starring Bruce Willis, Gary Oldman, and Milla Jovovich...

.
Dothraki
Dothraki language
The Dothraki language is the constructed language of the Dothraki, the indigenous inhabitants of the Dothraki Sea in the series A Song of Ice and Fire written by George R. R. Martin. It was created by David J. Peterson, a member of the Language Creation Society, for HBO's television series Game of...

, created by David J. Peterson for the TV series Game of Thrones
Game of Thrones (TV series)
Game of Thrones is an American medieval fantasy television series created for HBO by David Benioff and D. B. Weiss. Based on author George R. R. Martin's best-selling A Song of Ice and Fire series of fantasy novels, the first of which is called A Game of Thrones, the television series debuted in...

(based on the books by George R. R. Martin
George R. R. Martin
George Raymond Richard Martin , sometimes referred to as GRRM, is an American author and screenwriter of fantasy, horror, and science fiction. He is best known for A Song of Ice and Fire, his bestselling series of epic fantasy novels that HBO adapted for their dramatic pay-cable series Game of...

)
Enchanta
Enchanta
Enchanta is a constructed language spoken by the denizens of Encantadia, known as Encantado/Encantada or Diwata . It was initially created by Suzette Doctolero for the Philippine fantasy television drama saga Encantadia, which aired on GMA Network in 2005, and was later used in the show's sequels,...

, in the Encantadia
Encantadia
Encantadia is a Filipino fantasy television series produced by GMA Network. The pilot episode was aired on May 2, 2005. Its last episode was aired on December 9 of the same year to give way to its second book, Etheria. This series aired its pilot episode on December 12, and its last episode on...

and Etheria
Etheria
Etheria is a Filipino fantasy television series that was produced by GMA Network. The full title of the series is Etheria: Ang Ikalimang Kaharian ng Encantadia , referring to Encantadia, its predecessor series...

television series in the Philippines, created by the head writer Suzette Doctolero
Suzette Doctolero
Suzette Doctolero is a Filipino television writer and film writer. She is a resident writer of GMA Network.Her most famous work is the Encantadia Saga.- Television :* 2011 Amaya...
Eunoia, in the television series Earth: Final Conflict
Earth: Final Conflict
Earth: Final Conflict is a Canadian science fiction television series based on story ideas created by Gene Roddenberry, and produced under the guidance of his widow, Majel Barrett-Roddenberry. It was not produced, filmed or broadcast until after his death...

, consultant Christian Bök
Christian Bök
Christian Bök is an experimental Canadian poet. He is the author of Eunoia, which won the Canadian Griffin Poetry Prize, and which has been said to be "Canada's best-selling poetry book ever."-Life:...

.
Goa'uld, the galactic lingua franca
Lingua franca
A lingua franca is a language systematically used to make communication possible between people not sharing a mother tongue, in particular when it is a third language, distinct from both mother tongues.-Characteristics:"Lingua franca" is a functionally defined term, independent of the linguistic...

from Stargate SG-1
Stargate SG-1
Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

, supposedly influenced Ancient Egyptian
Egyptian language
Egyptian is the oldest known indigenous language of Egypt and a branch of the Afroasiatic language family. Written records of the Egyptian language have been dated from about 3400 BC, making it one of the oldest recorded languages known. Egyptian was spoken until the late 17th century AD in the...
Klingon
Klingon language
The Klingon language is the constructed language spoken by the fictional Klingons in the Star Trek universe....

(tlhIngan Hol), in the Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

movies and television series, created by Marc Okrand
Marc Okrand
Marc Okrand is an American linguist and is most notable as the creator of the Klingon language, which he speaks.-Biography:Okrand worked with Native American languages. He earned a bachelor's degree from the University of California, Santa Cruz in 1972...
Krakozhian from The Terminal
The Terminal
The Terminal is a 2004 American comedy-drama film directed by Steven Spielberg and starring Tom Hanks and Catherine Zeta-Jones. It is about a man trapped in a terminal at New York's John F. Kennedy International Airport when he is denied entry into the United States and at the same time cannot...
Ku
Ku (language)
Ku is a fictional language appearing in the 2005 drama/thriller film The Interpreter. In the film, Ku is a language spoken in the fictional African country of Matobo...

, a fictional African language in the movie The Interpreter
The Interpreter
The Interpreter is a 2005 political thriller film starring Nicole Kidman, Sean Penn, and Catherine Keener. It was the final film to be directed by Sydney Pollack.-Plot:...

(2005)
Nadsat
Nadsat
Nadsat is a fictional register or argot used by the teenagers in Anthony Burgess' novel A Clockwork Orange. In addition to being a novelist, Burgess was also a linguist and he used this background to depict his characters as speaking a form of Russian-influenced English...

, the fictional language spoken by Alex and his friends in Clockwork Orange
A Clockwork Orange (film)
A Clockwork Orange is a 1971 film adaptation of Anthony Burgess's 1962 novel of the same name. It was written, directed and produced by Stanley Kubrick...
Na'vi
Na'vi language
The Na’vi language is the constructed language of the Na’vi, the sapient humanoid indigenous inhabitants of the fictional moon Pandora in the 2009 film Avatar. It was created by Paul Frommer, a professor at the Marshall School of Business with a doctorate in linguistics...

, the fictional language spoken by the Na'vi in Avatar
Pakuni, the language of the Pakuni from the Land of the Lost television series
Land of the Lost (1974 TV series)
Land of the Lost is a children's television series co-created and produced by Sid and Marty Krofft. During its original run, it was broadcast on the NBC television network....

and movie
Land of the Lost (film)
Land of the Lost is a 2009 American science-fiction comedy film directed by Brad Silberling and starring Will Ferrell, Danny McBride and Anna Friel, based on the 1974 Sid and Marty Krofft TV series of the same name.-Plot:...

.
Plukanian, the fictional language of the planet Pluk in film Kin-dza-dza!
Kin-dza-dza!
Kin-dza-dza! is a 1986 Soviet comedy-science fiction film released by the Mosfilm studio and directed by Georgi Daneliya, with a story by Georgi Daneliya and Revaz Gabriadze. The movie was filmed in color, consists of two parts and runs for 135 minutes in total.The film is a dark and grotesque...
Slovetzian, the fictional Slavic language of Slovetzia in the movie The Beautician and the Beast
The Beautician and the Beast
The Beautician and the Beast is a 1997 American family comedy film directed by Ken Kwapis and starring Fran Drescher and Timothy Dalton as the title characters. The story follows the misadventures of a New York City beautician who is mistakenly hired as the school teacher for the children of the...
Tenctonese
Tenctonese
The Tenctonese, also known as Newcomers, are a humanoid species in the Alien Nation, television series and earlier film, as well as the later Alien Nation telefilm series. They are from the planet Tencton, though references to numerous slave colonies throughout the series and telemovies indicate...

from the Alien Nation
Alien Nation (film)
Alien Nation is a 1988 American science fiction film directed by Graham Baker and produced by Gale Anne Hurd, Richard Kobritz and Bill Borden. The storyline was based on a screenplay written by Rockne S. O'Bannon. It stars James Caan, Mandy Patinkin, Terence Stamp, and Kevyn Major Howard...

movie and television series, created by Van Ling
Van Ling
Van Ling is a producer and creator of DVD menus for many popular movies, including the Star Wars DVDs.- External links :...

and Kenneth Johnson
Ulam, the language spoken by the prehistoric humans in the movie Quest for Fire
Quest for Fire (film)
Quest for Fire is a 1981 film adaptation of the 1911 Belgian novel by J.-H. Rosny aîné . Directed by Jean-Jacques Annaud and adapted by Gérard Brach, the film stars Everett McGill, Ron Perlman, Nameer El-Kadi, and Rae Dawn Chong. It won the Academy Award for Makeup. Michael D...

, created by Anthony Burgess
Anthony Burgess
John Burgess Wilson – who published under the pen name Anthony Burgess – was an English author, poet, playwright, composer, linguist, translator and critic. The dystopian satire A Clockwork Orange is Burgess's most famous novel, though he dismissed it as one of his lesser works...

by melting roots of European languages.
Vulcan language from Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

. Further developed by fans as Golic Vulcan.

Unnamed languages

Riddley Walker
Riddley Walker
Riddley Walker is a science fiction novel by Russell Hoban, first published in 1980. It won the John W. Campbell Memorial Award for best science fiction novel in 1982, as well as an Australian Science Fiction Achievement Award in 1983...

, a 1980 novel by Russell Hoban
Russell Hoban
Russell Conwell Hoban is an American writer, now living in England, of fantasy, science fiction, mainstream fiction, magic realism, poetry, and children's books-Biography:...

, set in a post-apocalyptic future, is written entirely in a "devolved" form of English.

Music

Gulevache: fictional Romance language of the kingdom of Gulevandia in the bilingual opera Cardoso en Gulevandia
Cardoso en Gulevandia
Cardoso en Gulevandia is the eighth album of Les Luthiers, released in October, 1991. The recording, like antriores disks in the group, took place in the ion studies of the city of Buenos Aires , in the month of October of 1991...

by the comedy group Les Luthiers
Les Luthiers
Les Luthiers is an Argentine comedy-musical group, very popular also in several other Spanish-speaking countries such as Paraguay, Peru, Chile, Ecuador, Spain, Colombia, Mexico, Uruguay, Bolivia, Cuba and Venezuela. They were formed in 1967 by Gerardo Masana, during the height of a period of very...

.
Kajiuran, a language created by Japanese composer Yuki Kajiura
Yuki Kajiura
, born August 6, 1965 in Tokyo, Japan, is a Japanese composer and music producer. She has provided the music for several popular anime series, such as one of the Kimagure Orange Road movies, Noir, .hack//SIGN, Aquarian Age, Madlax, My-HiME, My-Otome, .hack//Roots, Pandora Hearts, Puella Magi...

.
Kobaïan
Kobaïan
-External links:*. Perfect Sound Forever.*....

(Zeuhl
Zeuhl
Zeuhl means celestial in Kobaïan, the constructed language created by Christian Vander. Originally solely applied to the music of Vander's band, Magma, the term zeuhl was eventually used to describe the similar music produced by French bands, beginning in the mid-1970s...

), the language used by 70's French rock group Magma
Magma (band)
Magma is a French progressive rock band founded in Paris in 1969 by classically trained drummer Christian Vander, who claimed as his inspiration a "vision of humanity's spiritual and ecological future" that profoundly disturbed him. In the course of their first album, the band tells the story of a...

.
Loxian
Loxian
Loxian is an artistic language and alphabet created by writer and lyricist Roma Ryan for Enya's 2005 album Amarantine. The language is featured in three songs on the album...

, created by Roma Ryan
Roma Ryan
Roma Shane Ryan is an Irish writer, poet, and lyricist, currently living in Artane, Ireland, with her husband Nicky....

, used on Enya
Enya
Enya is an Irish singer, instrumentalist and songwriter. Enya is an approximate transliteration of how Eithne is pronounced in the Donegal dialect of the Irish language, her native tongue.She began her musical career in 1980, when she briefly joined her family band Clannad before leaving to...

's 2005 album Amarantine
Amarantine (album)
Amarantine is an album by Irish musician Enya. The album was released on November 22, 2005. It won the Grammy Award for Best New Age Album for 2007.The release date was announced by Roma Ryan on September 23, 2005, at the official Enya forum...

.
Mohelmot, a forbidden language used by The Residents
The Residents
The Residents is an American art collective best known for avant-garde music and multimedia works. The first official release under the name of The Residents was in 1972, and the group has since released over sixty albums, numerous music videos and short films, three CD-ROM projects and ten DVDs....

on the album The Big Bubble: Part Four of the Mole Trilogy
The Big Bubble: Part Four of the Mole Trilogy
The Big Bubble is an album by The Residents. It was released in 1985, and fleshed out the backstory of the band's "Mole Trilogy", which had been introduced in Mark of the Mole and The Tunes of Two Cities . The official third part of the Mole Trilogy was never actually released, and neither were...

.
Gloatre, the language mostly used among creative activities of Les Légions Noires
Les Legions Noires
Les Légions Noires is a group of French underground black metal musicians and their bands, centered mostly around the city of Brest, in Britanny...

.
Unnamed languages, chronologically:
- “Infernal" language devised by the composer Hector Berlioz
  Hector Berlioz
  Hector Berlioz was a French Romantic composer, best known for his compositions Symphonie fantastique and Grande messe des morts . Berlioz made significant contributions to the modern orchestra with his Treatise on Instrumentation. He specified huge orchestral forces for some of his works; as a...
  
  , used for the original version of the Chorus of Shades in Lélio
  Lelio
  Lélio, ou le Retour à la Vie Op. 14b is a work incorporating music and spoken text by the French composer Hector Berlioz, intended as a sequel to his Symphonie fantastique...
  
  (1831), the Chorus of Demons (“Pandæmonium“) in La damnation de Faust (1846), and the “Dance of Nubian slaves” in Les Troyens
  Les Troyens
  Les Troyens is a French opera in five acts by Hector Berlioz. The libretto was written by Berlioz himself, based on Virgil's epic poem The Aeneid...
  
  (1856-1858).
- Language constructed by Wim Mertens
  Wim Mertens
  Wim Mertens is a Flemish Belgian composer, countertenor vocalist, pianist, guitarist, and musicologist.-Life and work:Mertens was born in Neerpelt, Belgium...
  
  to be used in his vocal performances (piano/voice) since the 1980s.
- Language constructed by the Canadian classical composer Claude Vivier
  Claude Vivier
  -Biography:Born to unknown parents in Montreal, Vivier was adopted at the age of three by a poor French-Canadian family. From the age of thirteen, he attended boarding schools run by the Marist Brothers, a religious order that prepared young boys for a vocation in the priesthood. At the age of...
  
  , used in works like Trois Airs pour un opéra imaginaire, released 1982.
- Language featured in the chorus
  Refrain
  A refrain is the line or lines that are repeated in music or in verse; the "chorus" of a song...
  
  of 2NU
  2NU
  2NU is an American pop music group based in Seattle, Washington. Their music consists of spoken word performances accompanied by beats and sound effects. They are best known for their single "This is Ponderous", which reached 46 on the Billboard Hot 100 in 1991...
  
  's 1991 track "This is Ponderous".
- Language featured in the soundtrack to the film 1492: Conquest of Paradise
  1492: Conquest of Paradise
  1492: Conquest of Paradise is an epic 1992 European adventure/drama film directed by Ridley Scott and written by Roselyne Bosch, which tells the story of the discovery of the New World by Christopher Columbus and the effect this had on the indigenous people...
  
  by Vangelis
  Vangelis
  Evangelos Odysseas Papathanassiou is a Greek composer of electronic, progressive, ambient, jazz, pop rock and orchestral music, under the artist name Vangelis...
  
  , released 1992.
- Language used in early albums of Russian band 2 Samoleta (rus. "2ва Самолёта") since early 1990s.
- Language used by Las Ketchup
  Las Ketchup
  Las Ketchup is a Latin Grammy Award nominated 4-girl group composed of sisters Lola Muñoz, Pilar Muñoz, Lucía Muñoz and Rocío Muñoz from Córdoba in Andalucia, Spain. They are the daughters of Juan Muñoz, a flamenco guitarist known as Tomatito , which is not the same as famous and virtuoso flamenco...
  
  in their song Aserejé
  The Ketchup Song
  "The Ketchup Song" is the English title of the song "Aserejé", performed by the Andalusian-Spanish pop group Las Ketchup, which was an international hit in 2002. The song exists in three versions, Spanish, a version in a mixture of English and Spanish, described as "Spanglish", and a version in...
  
  , released 2002.
- Language by Yves Barbieux, used in his song "Sanomi
  Sanomi
  "Sanomi" was the Belgian entry in the Eurovision Song Contest 2003, which ranked second in the Contest, performed in a constructed language by the six-piece band Urban Trad....
  
  " and performed by the Belgian group Urban Trad
  Urban Trad
  Urban Trad is a Belgian folk music group, consisting of both Flemish and French speaking people and a close connection with Galicia.-Members:*Yves Barbieux: flutes and Galician bagpipe*Veronica Codesal: vocals*Soetkin Collier: vocals...
  
  in the Eurovision Song contest in 2003.
- Language by Emmanuelle Orange, used in her song "Pialoushka" and performed by Montreal band Eden106, released 2006.

Performance

Grammelot
Grammelot
Grammelot is a term for a style of language in satirical theatre, a gibberish with macaronic and onomatopoeic elements, used in association with pantomime and mimicry....

(Cirquish) is a "gibberish" that goes back to the 16th century, used by performers, including those of Cirque du Soleil
Cirque du Soleil
Cirque du Soleil , is a Canadian entertainment company, self-described as a "dramatic mix of circus arts and street entertainment." Based in Montreal, Quebec, Canada, and located in the inner-city area of Saint-Michel, it was founded in Baie-Saint-Paul in 1984 by two former street performers, Guy...

Games

D'ni, the language spoken by the subterranean D'ni people in Cyan Worlds
Cyan Worlds
Cyan Worlds, Inc. is a video game development company, founded by brothers Rand and Robyn Miller in 1987, and best known as the creators of the Myst series. After Myst and its sequel Riven sold several million copies each, Cyan went on to create the massively multiplayer online adventure, Uru,...

' Myst
Myst
Myst is a graphic adventure video game designed and directed by the brothers Robyn and Rand Miller. It was developed by Cyan , a Spokane, Washington––based studio, and published and distributed by Brøderbund. The Millers began working on Myst in and released it for the Mac OS computer on September...

series of computer games and novels
Gargish, used in the Ultima computer game series, by the gargoyle race
Hymmnos, used by Reyvateils for Song Magic in Ar tonelico
kiZombie, used by zombies in the Urban Dead
Urban Dead
Urban Dead is a Free To Play HTML/text-based massively multiplayer online role-playing game created by Kevan Davis. Set in a quarantined region of the fictional city of Malton, it deals with the aftermath of a zombie outbreak. Players enter the game either as a survivor or a zombie, each with...

MMORPG
MMORPG
Massively multiplayer online role-playing game is a genre of role-playing video games in which a very large number of players interact with one another within a virtual game world....
Lashonnu is the language of the Wealdings (the Forest People) in the Gondica role playing game by Anders Blixt
Anders Blixt
Anders Blixt is a Swedish game designer and science journalist. He is one of most well-published designer of role playing games in Sweden and has had a leading role in the production of most of them, including classical titles such as Drakar och Demoner and Mutant.-Äventyrsspel:* Drakar och...
Mando'a, created by Karen Traviss
Karen Traviss
Karen Traviss is a science fiction author, and full-time novelist from Wiltshire, England. Originally from the Portsmouth area, Traviss worked as both a journalist and defence correspondent before turning her attention to writing fiction. She also served in both the Territorial Army and the Royal...

, used by the Mandalorian
Mandalorian
Mandalorians are a fictional group of warriors from several races in the Star Wars universe. They commonly act as mercenaries or bounty hunters. According to Star Wars Expanded Universe material, they are the cultural descendants of an extinct race called the Taung...

s in Star Wars: Republic Commando
Star Wars: Republic Commando
Star Wars: Republic Commando is a first-person shooter Star Wars video game, released in the US on March 1, 2005. It was developed and published by LucasArts for the Microsoft Windows and Xbox platforms. The game uses Epic Games' Unreal Engine...
Tho Fan, in the Xbox
Xbox
The Xbox is a sixth-generation video game console manufactured by Microsoft. It was released on November 15, 2001 in North America, February 22, 2002 in Japan, and March 14, 2002 in Australia and Europe and is the predecessor to the Xbox 360. It was Microsoft's first foray into the gaming console...

game Jade Empire
Jade Empire
Jade Empire is an action role-playing game developed by Canadian developer BioWare and first published in 2005 by Microsoft Game Studios as a worldwide release for the Xbox. The later, two-disc Limited Edition contained extra content...

, created by Wolf Wikeley
Tsolyani, a language developed by M. A. R. Barker
M. A. R. Barker
Muhammad Abd-al-Rahman Barker is a retired professor of Urdu and South Asian Studies who created one of the first roleplaying games, Empire of the Petal Throne, and has authored several fantasy/science fantasy novels based in his associated world setting of Tékumel.-Early life:Born in Spokane,...

in the mid-to-late 1940s in parallel with the development of his legendarium leading to the world of Tékumel
Tékumel
Tékumel is a fantasy world created by Professor M. A. R. Barker over the course of several decades from around 1940. With time Barker also created the role-playing game Empire of the Petal Throne, set in the Tékumel fictional universe and first published in 1975 by TSR, Inc...

as described in the roleplaying game Empire of the Petal Throne, published by TSR
TSR, Inc.
Blume and Gygax, the remaining owners, incorporated a new company called TSR Hobbies, Inc., with Blume and his father, Melvin Blume, owning the larger share. The former assets of the partnership were transferred to TSR Hobbies, Inc....

in 1975 and later literary tie-ins.
Vasudan, the language spoken by the Vasudan race in Descent: FreeSpace The Great War and in the other titles in the FreeSpace series.
Simlish
Simlish
Simlish is a fictional language featured in EA Games' Sim series of games. It debuted in SimCopter, and has been especially prominent in The Sims, The Sims 2 and The Sims 3. The Sims development team created the unique Simlish language by experimenting with fractured Ukrainian, French, Latin,...

is featured in The Sims life-simulation computer game series, a language that is spoken throughout the game.
Panzerese is a term used by the fans of the Panzer Dragoon
Panzer Dragoon
is a rail shooter video game released for the Sega Saturn in 1995; and later released on PC, PlayStation 2, and as a bonus in its sequel Panzer Dragoon Orta for Xbox...

series to describe the mix of Russian, Greek, and Latin spoken in the series.
Raymanese is a language used in the Rayman series, specifically Rayman 2: The Great Escape
Rayman 2: The Great Escape
Rayman 2: The Great Escape is a platform game and the sequel to Rayman. It was developed by Ubisoft and first released on October 29, 1999. It is considered to have raised standards regarding 3D, level design and game play, being praised by numerous reviews...

.

Internet-based

Dritok
Dritok
Dritok is a constructed language created by Don Boozer in 2007. Boozer is currently Secretary and Librarian of the Language Creation Society....

, by Don Boozer
Kamakawi, by David J. Peterson
Kēlen
Kēlen
Kēlen is a constructed language created by Sylvia Sotomayor. It is an attempt to create a truly alien language by violating a key linguistic universal — namely that all human languages have verbs. In Kēlen, relationships between the noun phrases making up the sentence are expressed by one...

, by Sylvia Sotomayor
Teonaht
Teonaht
Teonaht is a constructed language that has been developed since 1962 by science fiction writer and University of Rochester English professor Sarah Higley, under the pseudonym of Sally Caves...

, by Sally Caves
Sally Caves
Sally Caves is the pen name of Sarah Higley, a science fiction writer and professor of English at the University of Rochester. She is best known for creating the Star Trek character Reginald Barclay.-Star Trek:...
Verdurian
Verdurian language
The Verdurian language is a constructed language invented by Mark Rosenfelder in 1995 and hosted at his website, Zompist.com....

and several other languages created for the fictional planet of Almea by Mark Rosenfelder

Alternative languages

Anglish
Anglish
Anglo-Saxon linguistic purism is a kind of English linguistic purism, which favors words of native origin over those of foreign origin. In its mild form, it merely means using existing native words instead of foreign ones...
Brithenig
Brithenig
Brithenig is an invented language, or constructed language . It was created as a hobby in 1996 by Andrew Smith from New Zealand, who also invented the alternate history of Ill Bethisad to "explain" it....

(bzt), created by the inventor of the alternate history of Ill Bethisad
Ill Bethisad
Ill Bethisad is an ongoing, collaborative alternate history project which currently has over 70 participants, originally created by Andrew Smith from New Zealand. It was initiated in 1997 as the Brithenig Project. It can be counted to the subgenre of steampunk, and is known as one of the oldest and...

, Andrew Smith
Several North Slavic languages, inspired by the existence of West
West Slavic languages
The West Slavic languages are a subdivision of the Slavic language group that includes Czech, Polish, Slovak, Kashubian and Sorbian.Classification:* Indo-European** Balto-Slavic*** Slavic**** West Slavic***** Czech-Slovak languages****** Czech...

, East
East Slavic languages
The East Slavic languages constitute one of three regional subgroups of Slavic languages, currently spoken in Eastern Europe. It is the group with the largest numbers of speakers, far out-numbering the Western and Southern Slavic groups. Current East Slavic languages are Belarusian, Russian,...

and South Slavic languages
South Slavic languages
The South Slavic languages comprise one of three branches of the Slavic languages. There are approximately 30 million speakers, mainly in the Balkans. These are separated geographically from speakers of the other two Slavic branches by a belt of German, Hungarian and Romanian speakers...

and the absence of a Northern branch
Wenedyk
Wenedyk
Wenedyk is a naturalistic constructed language, created by the Dutch translator Jan van Steenbergen . It is used in the fictional Republic of the Two Crowns , in the alternate timeline of Ill Bethisad...

, a language of the alternate history of Ill Bethisad
Ill Bethisad
Ill Bethisad is an ongoing, collaborative alternate history project which currently has over 70 participants, originally created by Andrew Smith from New Zealand. It was initiated in 1997 as the Brithenig Project. It can be counted to the subgenre of steampunk, and is known as one of the oldest and...

created by Jan van Steenbergen

Personal languages

Enochian
Enochian
Enochian is a name often applied to an occult or angelic language recorded in the private journals of John Dee and his seer Edward Kelley in the late 16th century. The men claimed that it was revealed to them by angels...

by Edward Kelley
Edward Kelley
Sir Edward Kelley or Kelly, also known as Edward Talbot was an ambiguous figure in English Renaissance occultism and self-declared spirit medium who worked with John Dee in his magical investigations...
Lingua Ignota
Lingua Ignota
A Lingua Ignota was described by the 12th century abbess of Rupertsberg, Hildegard of Bingen, who apparently used it for mystical purposes...

, by Hildegard of Bingen
Hildegard of Bingen
Blessed Hildegard of Bingen , also known as Saint Hildegard, and Sibyl of the Rhine, was a German writer, composer, philosopher, Christian mystic, Benedictine abbess, visionary, and polymath. Elected a magistra by her fellow nuns in 1136, she founded the monasteries of Rupertsberg in 1150 and...
Mänti, invented by Daniel Tammet
Daniel Tammet
Daniel Tammet is a British writer. His best selling 2006 memoir, Born On A Blue Day, about his life with high-functioning autism and savant syndrome, was named a "Best Book for Young Adults" in 2008 by the American Library Association.Tammet's second book, Embracing the Wide Sky, was named one of...
Vendergood (1906), invented by William James Sidis
William James Sidis
William James Sidis was an American child prodigy with exceptional mathematical and linguistic abilities. His IQ was estimated to be between 250 and 300 - one of the highest ever recorded - he entered Harvard early at age 11, and as an adult was conversant in over 40 languages and dialects...

when he was eight years old

Language game
Language game
A language game is a system of manipulating spoken words to render them incomprehensible to the untrained ear. Language games are used primarily by groups attempting to conceal their conversations from others...

s

Gibberish
Gibberish (language game)
Gibberish is a language game or secret language similar to Pig Latin that is played in the United States, Canada and Northern Ireland. Similar games are played in many other countries...
Jeringonza
Jeringonza
Jeringonza is a Spanish language game played by children in Spain and all over Latin America. It consists of adding the letter p after each vowel of a word, and repeating the vowel. For example, Carlos turns into Cápar-lopos....
Língua do Pê
Língua do Pê
Língua do Pê is a language game spoken in Brazil and Portugal with Portuguese. It is also known in other languages, such as Dutch.-"Double talk" dialect:...
Louchebem
Louchébem
Louchébem or loucherbem is Parisian and Lyonnaise butchers' slang, similar to Pig Latin and Verlan. It originated in the mid-19th century. Each word is transformed by moving the first consonant to the end; and suffixes such as -ème, -ji, -oc, -muche are added at the end; the letter "L" is placed...
Opish
Pig Latin
Pig Latin
Pig Latin is a language game of alterations played in English. To form the Pig Latin form of an English word the first consonant is moved to the end of the word and an ay is affixed . The object is to conceal the meaning of the words from others not familiar with the rules...
Rosarigasino
Rosarigasino
Rosarigasino is a language game traditionally associated with the city of Rosario, , even though very few people, if any, currently employ it....
Rövarspråket
Rövarspråket
Rövarspråket is a Swedish language game. It became popular after the books about Kalle Blomkvist by Astrid Lindgren, where the children use it as a code, both at play and in solving actual crimes....
Sananmuunnos
Sananmuunnos
Sananmuunnos is a sort of verbal play in the Finnish language, similar to spoonerisms in English.Special to Finnish is a narrow phoneme inventory and vowel harmony. As Finnish is a mora-divided language, it is morae that are exchanged, not syllables...
Šatrovački
Šatrovacki
Šatrovački is a feature of permuting syllables of words used in Serbian, Croatian, Bosnian and Macedonian. It is similar to verlan and louchébem in French. The term is sometimes used to describe other slang in which words are deformed, as well.Šatrovački was initially developed by criminals in...
Starckdeutsch
Starckdeutsch
Starckdeutsch , also called Siegfriedsch and Kauderdeutsch, is an imagined language created by Matthias Koeppel, a German painter and poet and self-proclaimed Sprachkünstler...

, Starckteutsch
Tutnese
Tutnese
Tutnese or Double Dutch is a language game primarily used in English, although the rules can be easily modified to apply to almost any language...
Ubbi dubbi
Ubbi dubbi
Ubbi Dubbi is a language game spoken with the English language, and is a close relative of the language game Obbish. It was popularized by the long-running PBS television show ZOOM...
Verlan
Verlan
Verlan is an argot in the French language, featuring inversion of syllables in a word, and is common in slang and youth language. It rests on a long French tradition of transposing syllables of individual words to create slang words...
Vesre
Vesre
Vesre is one of the features of Rioplatense Spanish slang. Natives of Buenos Aires and Uruguay use vesre sparingly in colloquial speaking, and never in formal circumstances...

External links

Language analysis from Linguist List

The source of this article is wikipedia, the free encyclopedia. The text of this article is licensed under the GFDL.