Word
Encyclopedia
In language
Language
Language may refer either to the specifically human capacity for acquiring and using complex systems of communication, or to a specific instance of such a system of complex communication...

, a word is the smallest free form that may be uttered in isolation with semantic or pragmatic
Pragmatics
Pragmatics is a subfield of linguistics which studies the ways in which context contributes to meaning. Pragmatics encompasses speech act theory, conversational implicature, talk in interaction and other approaches to language behavior in philosophy, sociology, and linguistics. It studies how the...

 content (with literal or practical meaning
Meaning (linguistics)
In linguistics, meaning is what is expressed by the writer or speaker, and what is conveyed to the reader or listener, provided that they talk about the same thing . In other words if the object and the name of the object and the concepts in their head are the same...

). This contrasts with a morpheme
Morpheme
In linguistics, a morpheme is the smallest semantically meaningful unit in a language. The field of study dedicated to morphemes is called morphology. A morpheme is not identical to a word, and the principal difference between the two is that a morpheme may or may not stand alone, whereas a word,...

, which is the smallest unit of meaning but will not necessarily stand on its own. A word may consist of a single morpheme (for example: oh!, rock, red, quick, run, expect), or several (rocks, redness, quickly, running, unexpected), whereas a morpheme may not be able to stand on its own as a word (in the words just mentioned, these are -s, -ness, -ly, -ing, un-, -ed).

A complex word will typically include a root
Root (linguistics)
The root word is the primary lexical unit of a word, and of a word family , which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents....

 and one or more affix
Affix
An affix is a morpheme that is attached to a word stem to form a new word. Affixes may be derivational, like English -ness and pre-, or inflectional, like English plural -s and past tense -ed. They are bound morphemes by definition; prefixes and suffixes may be separable affixes...

es (rock-s, red-ness, quick-ly, run-ning, un-expect-ed), or more than one root in a compound (black-board, rat-race). Words can be put together to build larger elements of language, such as phrase
Phrase
In everyday speech, a phrase may refer to any group of words. In linguistics, a phrase is a group of words which form a constituent and so function as a single unit in the syntax of a sentence. A phrase is lower on the grammatical hierarchy than a clause....

s (a red rock), clause
Clause
In grammar, a clause is the smallest grammatical unit that can express a complete proposition. In some languages it may be a pair or group of words that consists of a subject and a predicate, although in other languages in certain clauses the subject may not appear explicitly as a noun phrase,...

s (I threw a rock), and sentences
Sentence (linguistics)
In the field of linguistics, a sentence is an expression in natural language, and often defined to indicate a grammatical unit consisting of one or more words that generally bear minimal syntactic relation to the words that precede or follow it...

 (he threw one too but he missed).

The term word may refer to a spoken word or to a written word, or sometimes to the abstract concept behind either. Spoken words are made up of units of sound called phoneme
Phoneme
In a language or dialect, a phoneme is the smallest segmental unit of sound employed to form meaningful contrasts between utterances....

s, and written words of symbols called graphemes, such as the letters of English.

Definitions

The ease or difficulty of deciphering a word depends on the language. Dictionaries categorize a language's lexicon
Lexicon
In linguistics, the lexicon of a language is its vocabulary, including its words and expressions. A lexicon is also a synonym of the word thesaurus. More formally, it is a language's inventory of lexemes. Coined in English 1603, the word "lexicon" derives from the Greek "λεξικόν" , neut...

 (i.e., its vocabulary) into lemmas. These can be taken as an indication of what constitutes a "word" in the opinion of the writers of that language.

Semantic definition

Leonard Bloomfield
Leonard Bloomfield
Leonard Bloomfield was an American linguist who led the development of structural linguistics in the United States during the 1930s and the 1940s. His influential textbook Language, published in 1933, presented a comprehensive description of American structural linguistics...

 introduced the concept of "Minimal Free Forms" in 1926. Words are thought of as the smallest meaningful unit of speech that can stand by themselves. This correlates phonemes (units of sound) to lexeme
Lexeme
A lexeme is an abstract unit of morphological analysis in linguistics, that roughly corresponds to a set of forms taken by a single word. For example, in the English language, run, runs, ran and running are forms of the same lexeme, conventionally written as RUN...

s (units of meaning). However, some written words are not minimal free forms, as they make no sense by themselves (for example, the and of).

Some semanticists have proposed a theory of so-called semantic primitives or semantic primes
Semantic primes
Semantic primes means the suggestion that we have as part of our inherited human faculties a basic set of innate 'concepts', or perhaps more precisely, a non-conscious propensity and eagerness to acquire those concepts and encode them in sound-forms...

, indefinable words representing fundamental concepts that are intuitively meaningful. According to this theory, semantic primes serve as the basis for describing the meaning, without circularity, of other words and their associated conceptual denotations.

Features

In the Minimalist
Minimalist program
In linguistics, the Minimalist Program is a major line of inquiry that has been developing inside generative grammar since the early nineties. It started with a 1993 paper by Noam Chomsky....

 school of theoretical syntax, words (also called lexical items in the literature) are construed as "bundles" of linguistic features
Feature (linguistics)
A feature is a concept applied to several fields of linguistics, typically involving the assignment of binary or unary conditions which act as constraints.-In phonology:...

 that are united into a structure with form and meaning. For example, the word "bears" has semantic features (it denotes real-world objects, bear
Bear
Bears are mammals of the family Ursidae. Bears are classified as caniforms, or doglike carnivorans, with the pinnipeds being their closest living relatives. Although there are only eight living species of bear, they are widespread, appearing in a wide variety of habitats throughout the Northern...

s), category
Lexical category
In grammar, a part of speech is a linguistic category of words , which is generally defined by the syntactic or morphological behaviour of the lexical item in question. Common linguistic categories include noun and verb, among others...

 features (it is a noun), number
Grammatical number
In linguistics, grammatical number is a grammatical category of nouns, pronouns, and adjective and verb agreement that expresses count distinctions ....

 features (it is plural and must agree with verbs, pronouns, and demonstratives in its domain), phonological
Phonology
Phonology is, broadly speaking, the subdiscipline of linguistics concerned with the sounds of language. That is, it is the systematic use of sound to encode meaning in any spoken human language, or the field of linguistics studying this use...

 features (it is pronounced a certain way), etc.

Word boundaries

The task of defining what constitutes a "word" involves determining where one word ends and another word begins—in other words, identifying word boundaries. There are several ways to determine where the word boundaries of spoken language should be placed:
  • Potential pause: A speaker is told to repeat a given sentence slowly, allowing for pauses. The speaker will tend to insert pauses at the word boundaries. However, this method is not foolproof: the speaker could easily break up polysyllabic words, or fail to separate two or more closely related words.
  • Indivisibility: A speaker is told to say a sentence
    Sentence (linguistics)
    In the field of linguistics, a sentence is an expression in natural language, and often defined to indicate a grammatical unit consisting of one or more words that generally bear minimal syntactic relation to the words that precede or follow it...

     out loud, and then is told to say the sentence again with extra words added to it. Thus, I have lived in this village for ten years might become My family and I have lived in this little village for about ten or so years. These extra words will tend to be added in the word boundaries of the original sentence. However, some languages have infix
    Infix
    An infix is an affix inserted inside a word stem . It contrasts with adfix, a rare term for an affix attached to the end of a stem, such as a prefix or suffix.-Indonesian:...

    es, which are put inside a word. Similarly, some have separable affixes; in the German
    German language
    German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

     sentence "Ich komme gut zu Hause an", the verb ankommen is separated.
  • Phonetic boundaries: Some languages have particular rules of pronunciation
    Pronunciation
    Pronunciation refers to the way a word or a language is spoken, or the manner in which someone utters a word. If one is said to have "correct pronunciation", then it refers to both within a particular dialect....

     that make it easy to spot where a word boundary should be. For example, in a language that regularly stresses the last syllable of a word, a word boundary is likely to fall after each stressed syllable. Another example can be seen in a language that has vowel harmony
    Vowel harmony
    Vowel harmony is a type of long-distance assimilatory phonological process involving vowels that occurs in some languages. In languages with vowel harmony, there are constraints on which vowels may be found near each other....

     (like Turkish
    Turkish language
    Turkish is a language spoken as a native language by over 83 million people worldwide, making it the most commonly spoken of the Turkic languages. Its speakers are located predominantly in Turkey and Northern Cyprus with smaller groups in Iraq, Greece, Bulgaria, the Republic of Macedonia, Kosovo,...

    ): the vowels within a given word share the same quality, so a word boundary is likely to occur whenever the vowel quality changes. Nevertheless, not all languages have such convenient phonetic rules, and even those that do present the occasional exceptions.
  • Orthographic boundaries: See below.

Orthography

In languages with a literary tradition
Writing
Writing is the representation of language in a textual medium through the use of a set of signs or symbols . It is distinguished from illustration, such as cave drawing and painting, and non-symbolic preservation of language via non-textual media, such as magnetic tape audio.Writing most likely...

, there is interrelation between orthography
Orthography
The orthography of a language specifies a standardized way of using a specific writing system to write the language. Where more than one writing system is used for a language, for example Kurdish, Uyghur, Serbian or Inuktitut, there can be more than one orthography...

 and the question of what is considered a single word. Word separators (typically spaces
Space (punctuation)
In writing, a space is a blank area devoid of content, serving to separate words, letters, numbers, and punctuation. Conventions for interword and intersentence spaces vary among languages, and in some cases the spacing rules are quite complex....

) are common in modern orthography of languages using alphabetic scripts, but these are (excepting isolated precedents) a relatively modern development (see also history of writing
History of writing
The history of writing records the development of expressing language by letters or other marks. In the history of how systems of representation of language through graphic means have evolved in different human civilizations, more complete writing systems were preceded by proto-writing, systems of...

).

In English orthography
English orthography
English orthography is the alphabetic spelling system used by the English language. English orthography, like other alphabetic orthographies, uses a set of habits to represent speech sounds in writing. In most other languages, these habits are regular enough so that they may be called rules...

, compound
Compound (linguistics)
In linguistics, a compound is a lexeme that consists of more than one stem. Compounding or composition is the word formation that creates compound lexemes...

 expressions may contain spaces. Examples are ice cream, air raid shelter, get up, and these must thus be considered as more than one word. (Ice, cream, air etc. indisputably exist as free forms, the case of get is less clear.) In contrast, brownstone is spelt as a single word and would thus be considered as such for most purposes even though brown and stone are free forms.

Vietnamese
Vietnamese language
Vietnamese is the national and official language of Vietnam. It is the mother tongue of 86% of Vietnam's population, and of about three million overseas Vietnamese. It is also spoken as a second language by many ethnic minorities of Vietnam...

 orthography, although using the Latin alphabet
Latin alphabet
The Latin alphabet, also called the Roman alphabet, is the most recognized alphabet used in the world today. It evolved from a western variety of the Greek alphabet called the Cumaean alphabet, which was adopted and modified by the Etruscans who ruled early Rome...

, delimits monosyllabic morphemes, not words. East Asian orthography (languages using CJK characters) also tend to delimit syllables (in the case of Chinese characters) or mora
Mora (linguistics)
Mora is a unit in phonology that determines syllable weight, which in some languages determines stress or timing. As with many technical linguistic terms, the definition of a mora varies. Perhaps the most succinct working definition was provided by the American linguist James D...

e (in the case of kana
Kana
Kana are the syllabic Japanese scripts, as opposed to the logographic Chinese characters known in Japan as kanji and the Roman alphabet known as rōmaji...

) rather than full words. Hangul
Hangul
Hangul,Pronounced or ; Korean: 한글 Hangeul/Han'gŭl or 조선글 Chosŏn'gŭl/Joseongeul the Korean alphabet, is the native alphabet of the Korean language. It is a separate script from Hanja, the logographic Chinese characters which are also sometimes used to write Korean...

 the Korean
Korean language
Korean is the official language of the country Korea, in both South and North. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China. There are about 78 million Korean speakers worldwide. In the 15th century, a national writing...

 alphabet, delimits both syllables and words, by grouping graphemes into syllabic blocks but also adds spaces between words. Conversely, synthetic language
Synthetic language
In linguistic typology, a synthetic language is a language with a high morpheme-per-word ratio, as opposed to a low morpheme-per-word ratio in what is described as an isolating language...

s often combine many lexical morphemes into single words, making it difficult to boil them down to the traditional sense of words found more easily in analytic languages; this is especially difficult for polysynthetic language
Polysynthetic language
In linguistic typology, polysynthetic languages are highly synthetic languages, i.e., languages in which words are composed of many morphemes. Whereas isolating languages have a low morpheme-to-word ratio, polysynthetic languages have extremely high morpheme-to-word ratios.Not all languages can be...

s, such as Inuktitut
Inuktitut
Inuktitut or Eastern Canadian Inuktitut, Eastern Canadian Inuit language is the name of some of the Inuit languages spoken in Canada...

 and Ubykh
Ubykh language
Ubykh or Ubyx is an extinct language of the Northwestern Caucasian group, spoken by the Ubykh people...

, where entire sentences may consist of a single word.

Morphology

In synthetic language
Synthetic language
In linguistic typology, a synthetic language is a language with a high morpheme-per-word ratio, as opposed to a low morpheme-per-word ratio in what is described as an isolating language...

s, a single word stem
Word stem
In linguistics, a stem is a part of a word. The term is used with slightly different meanings.In one usage, a stem is a form to which affixes can be attached. Thus, in this usage, the English word friendships contains the stem friend, to which the derivational suffix -ship is attached to form a new...

 (for example, love) may have a number of different forms (for example, loves, loving, and loved). However for some purposes these are not usually considered to be different words, but rather different forms of the same word. In these languages, words may be considered to be constructed from a number of morpheme
Morpheme
In linguistics, a morpheme is the smallest semantically meaningful unit in a language. The field of study dedicated to morphemes is called morphology. A morpheme is not identical to a word, and the principal difference between the two is that a morpheme may or may not stand alone, whereas a word,...

s.
In Indo-European languages
Indo-European languages
The Indo-European languages are a family of several hundred related languages and dialects, including most major current languages of Europe, the Iranian plateau, and South Asia and also historically predominant in Anatolia...

 in particular, the morphemes distinguished are
  • the root
    Root (linguistics)
    The root word is the primary lexical unit of a word, and of a word family , which carries the most significant aspects of semantic content and cannot be reduced into smaller constituents....

  • optional suffixes
  • a desinence.

Thus, the Proto-Indo-European would be analyzed as consisting of
  1. , the zero grade of the root
  2. a root-extension (diachronically a suffix), resulting in a complex root
  3. The thematic suffix 
  4. the neuter gender nominative or accusative singular desinence .

Philosophy

Philosophers have found words objects of fascination since at least the 5th century BC, with the foundation of the philosophy of language
Philosophy of language
Philosophy of language is the reasoned inquiry into the nature, origins, and usage of language. As a topic, the philosophy of language for analytic philosophers is concerned with four central problems: the nature of meaning, language use, language cognition, and the relationship between language...

. Plato
Plato
Plato , was a Classical Greek philosopher, mathematician, student of Socrates, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the Western world. Along with his mentor, Socrates, and his student, Aristotle, Plato helped to lay the...

 analyzed words in terms of their origins and the sounds making them up, concluding that there was some connection between sound and meaning, though words change a great deal over time. John Locke
John Locke
John Locke FRS , widely known as the Father of Liberalism, was an English philosopher and physician regarded as one of the most influential of Enlightenment thinkers. Considered one of the first of the British empiricists, following the tradition of Francis Bacon, he is equally important to social...

 wrote that the use of words "is to be sensible marks of ideas", though they are chosen "not by any natural connexion that there is between particular articulate sounds and certain ideas, for then there would be but one language amongst all men; but by a voluntary imposition, whereby such a word is made arbitrarily the mark of such an idea". Wittgenstein's thought transitioned from a word as representation of meaning to "the meaning of a word is its use in the language."

Classes

Grammar
Grammar
In linguistics, grammar is the set of structural rules that govern the composition of clauses, phrases, and words in any given natural language. The term refers also to the study of such rules, and this field includes morphology, syntax, and phonology, often complemented by phonetics, semantics,...

 classifies a language's lexicon into several groups of words. The basic bipartite division possible for virtually every natural language
Natural language
In the philosophy of language, a natural language is any language which arises in an unpremeditated fashion as the result of the innate facility for language possessed by the human intellect. A natural language is typically used for communication, and may be spoken, signed, or written...

 is that of noun
Noun
In linguistics, a noun is a member of a large, open lexical category whose members can occur as the main word in the subject of a clause, the object of a verb, or the object of a preposition .Lexical categories are defined in terms of how their members combine with other kinds of...

s vs. verb
Verb
A verb, from the Latin verbum meaning word, is a word that in syntax conveys an action , or a state of being . In the usual description of English, the basic form, with or without the particle to, is the infinitive...

s.

The classification into such classes is in the tradition of Dionysius Thrax
Dionysius Thrax
Dionysius Thrax was a Hellenistic grammarian and a pupil of Aristarchus of Samothrace. His place of origin was not Thrace as the epithet Thrax denotes, but probably Alexandria...

, who distinguished eight categories: noun
Noun
In linguistics, a noun is a member of a large, open lexical category whose members can occur as the main word in the subject of a clause, the object of a verb, or the object of a preposition .Lexical categories are defined in terms of how their members combine with other kinds of...

, verb
Verb
A verb, from the Latin verbum meaning word, is a word that in syntax conveys an action , or a state of being . In the usual description of English, the basic form, with or without the particle to, is the infinitive...

, adjective
Adjective
In grammar, an adjective is a 'describing' word; the main syntactic role of which is to qualify a noun or noun phrase, giving more information about the object signified....

, pronoun
Pronoun
In linguistics and grammar, a pronoun is a pro-form that substitutes for a noun , such as, in English, the words it and he...

, preposition, adverb
Adverb
An adverb is a part of speech that modifies verbs or any part of speech other than a noun . Adverbs can modify verbs, adjectives , clauses, sentences, and other adverbs....

, conjunction
Grammatical conjunction
In grammar, a conjunction is a part of speech that connects two words, sentences, phrases or clauses together. A discourse connective is a conjunction joining sentences. This definition may overlap with that of other parts of speech, so what constitutes a "conjunction" must be defined for each...

 and interjection
Interjection
In grammar, an interjection or exclamation is a word used to express an emotion or sentiment on the part of the speaker . Filled pauses such as uh, er, um are also considered interjections...

.

In Indian grammatical tradition, Pāṇini introduced a similar fundamental classification into a nominal (nāma, suP) and a verbal (ākhyāta, tiN) class, based on the set of desinences taken by the word.

See also

  • Grammar
    Grammar
    In linguistics, grammar is the set of structural rules that govern the composition of clauses, phrases, and words in any given natural language. The term refers also to the study of such rules, and this field includes morphology, syntax, and phonology, often complemented by phonetics, semantics,...

  • Lexeme
    Lexeme
    A lexeme is an abstract unit of morphological analysis in linguistics, that roughly corresponds to a set of forms taken by a single word. For example, in the English language, run, runs, ran and running are forms of the same lexeme, conventionally written as RUN...

  • Lexical item
    Lexical item
    A Lexical item is a single word or chain of words that forms the basic elements of a language's lexicon . Examples are "cat", "traffic light", "take care of", "by-the-way", and "it's raining cats and dogs"...

  • Lexicon
    Lexicon
    In linguistics, the lexicon of a language is its vocabulary, including its words and expressions. A lexicon is also a synonym of the word thesaurus. More formally, it is a language's inventory of lexemes. Coined in English 1603, the word "lexicon" derives from the Greek "λεξικόν" , neut...

  • Lexis (linguistics)
    Lexis (linguistics)
    In linguistics, a lexis is the total word-stock or lexicon having items of lexical, rather than grammatical, meaning. This notion contrasts starkly with the Chomskian proposition of a “Universal Grammar” as the prime mover for language...

  • Meaning (linguistics)
    Meaning (linguistics)
    In linguistics, meaning is what is expressed by the writer or speaker, and what is conveyed to the reader or listener, provided that they talk about the same thing . In other words if the object and the name of the object and the concepts in their head are the same...

  • Morphology (linguistics)
    Morphology (linguistics)
    In linguistics, morphology is the identification, analysis and description, in a language, of the structure of morphemes and other linguistic units, such as words, affixes, parts of speech, intonation/stress, or implied context...

  • Speech
    Speech
    Speech is the human faculty of speaking.It may also refer to:* Public speaking, the process of speaking to a group of people* Manner of articulation, how the body parts involved in making speech are manipulated...

  • Utterance
    Utterance
    In spoken language analysis an utterance is a complete unit of speech. It is generally but not always bounded by silence.It can be represented and delineated in written language in many ways. Note that in such areas of research utterances do not exist in written language, only their representations...

  • Longest words
    Longest words
    The longest word in any given language depends on the word formation rules of each specific language, and on the types of words allowed for consideration. Agglutinative languages allow for the creation of long words via compounding. Even non-agglutinative languages may allow word formation of...

  • English words with unusual properties

External links

  • What Is a Word? – a working paper by Larry Trask
    Larry Trask
    Robert Lawrence "Larry" Trask was Professor of Linguistics at the University of Sussex and an authority on the Basque language and historical linguistics....

     (see http://www.sussex.ac.uk/linguistics/1-4-1-2.html for attribution), Department of Linguistics and English Language, University of Sussex
    University of Sussex
    The University of Sussex is an English public research university situated next to the East Sussex village of Falmer, within the city of Brighton and Hove. The University received its Royal Charter in August 1961....

    .
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