Commerce and law

• Affinity fraud
  Affinity fraud
  Affinity fraud includes investment frauds that prey upon members of identifiable groups, such as religious or ethnic communities, language minorities, the elderly, or professional groups. The fraudsters who promote affinity scams frequently are – or pretend to be – members of the group...
  
  , a type of scam targeting a specific demographic
• Affinity analysis
  Affinity analysis
  Affinity analysis is a data analysis and data mining technique that discovers co-occurrence relationships among activities performed by specific individuals or groups. In general, this can be applied to any process where agents can be uniquely identified and information about their activities can...
  
  , a market research
  Market research
  Market research is any organized effort to gather information about markets or customers. It is a very important component of business strategy...
  
   and business management
  Management
  Management in all business and organizational activities is the act of getting people together to accomplish desired goals and objectives using available resources efficiently and effectively...
  
   technique used to identify products likely to be bought together or the relationship of demand for a product to other external factors such as weather
  Weather
  Weather is the state of the atmosphere, to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy. Most weather phenomena occur in the troposphere, just below the stratosphere. Weather refers, generally, to day-to-day temperature and precipitation activity, whereas climate...
  
  .
• Affinity marketing
  Affinity marketing
  Affinity Marketing is a targeted way of marketing products and services. By linking complementary brands, it can develop them into lasting partnerships and strategic alliances.- Development of Affinity Marketing :...
  
  , a method of extending market reach by forming partnerships and cross-selling relationships.
• Affinity (law)
  Affinity (law)
  In law and in cultural anthropology, affinity, as distinguished from consanguinity, is kinship by marriage. It is the relation which each party to a marriage bears to the kindred of the other. In English, affinity is usually signified by adding "-in-law" to the degree of kinship...
  
  , kinship by marriage

Religion and conviction

• Affinity (canon law)
  Affinity (canon law)
  In Canon law of the Catholic Church, affinity is a relationship which "arises from a valid marriage, even if not consummated, and exists between a man and the blood relatives of the woman and between the woman and the blood relatives of the man."...
  
  , a kinship arising from the sexual intercourse of a man and a woman
• Affinity (Christian organisation)
  Affinity (Christian organisation)
  Affinity describes itself as "a growing network of many hundreds of Bible-centred churches and Christian agencies throughout Britain and Ireland". It was founded in 1953 as the British Evangelical Council and in 1981 numbered over 2,000 churches. The organization stagnated in the 1980s following...
  
  , formerly known as the British Evangelical Council
• Affinity group
  Affinity group
  An Affinity group is usually a small group of activists who work together on direct action.Affinity groups are organized in a non-hierarchical manner, usually using consensus decision making, and are often made up of trusted friends...
  
   - small protest or activist groups of 10-30 people

Science and technology

• Affinity chromatography
  Affinity chromatography
  Affinity chromatography is a method of separating biochemical mixtures and based on a highly specific interaction such as that between antigen and antibody, enzyme and substrate, or receptor and ligand.-Uses:Affinity chromatography can be used to:...
  
  
• Affinity electrophoresis
  Affinity electrophoresis
  Affinity electrophoresis is a general name for many analytical methods used in biochemistry and biotechnology. Both qualitative and quantitative information may be obtained through affinity electrophoresis. The methods include the so-called mobility shift electrophoresis, charge shift...
  
  
• Affinity laws
  Affinity laws
  The affinity laws are used in hydraulics and HVAC to express the relationship between variables involved in pump or fan performance and power. They apply to pumps, fans, and hydraulic turbines...
  
  , in hydraulics, used to express the relationship between variables involved in fan or pump performance
• Affinity (mathematics) - an affine transformation (which preserves collinearity)
• Affinity (pharmacology) - in biochemistry, protein-ligand binding
• Affinity (sociology)
  Affinity (sociology)
  Affinity in terms of sociology, refers to "kinship of spirit", interest and other interpersonal commonalities. Affinity is characterized by high levels of intimacy and sharing, usually in close groups, also known as affinity groups. It differs from affinity in law and canon law which generally...
  
   - shared interests and commitments between persons in groups, "willingness to associate"; see also interpersonal compatibility
  Interpersonal compatibility
  Interpersonal compatibility is a concept that describes the long-term interaction between two or more individuals in terms of the ease and comfort of communication.-Existing concepts:...
  
   and friendliness
  Friendship
  Friendship is a form of interpersonal relationship generally considered to be closer than association, although there is a range of degrees of intimacy in both friendships and associations. Friendship and association are often thought of as spanning across the same continuum...
  
  .
• Affinity (taxonomy)
  Affinity (taxonomy)
  Affinity — mainly in life sciences or natural history - resemblance suggesting a common descent, phylogenetic relationship, or type. The term does however have broader application, such as in geology , and similarly in astronomy Affinity (taxonomy) — mainly in life sciences or natural history -...
  
   - mainly in natural history - resemblance suggesting a common descent or type
• Electron affinity
  Electron affinity
  The Electron affinity of an atom or molecule is defined as the amount of energy released when an electron is added to a neutral atom or molecule to form a negative ion....
  
  
• Processor affinity
  Processor affinity
  Processor affinity is a modification of the native central queue scheduling algorithm in a symmetric multiprocessing operating system. Each task in the queue has a tag indicating its preferred / kin processor...
  
  , a computing
  Computing
  Computing is usually defined as the activity of using and improving computer hardware and software. It is the computer-specific part of information technology...
  
   term for the assignment of a task to a given core of a multicore
  Multicore
  Multicore may refer to:* Multi-core processor ** Multicore Association, founded in 2005, a non-profit, industry consortium focused on multicore technology* multicore cable, a generic term for an electrical cable that has multiple cores...
  
   CPU.
• In chemistry
  Chemistry
  Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....
  
  , chemical affinity
  Chemical affinity
  In chemical physics and physical chemistry, chemical affinity is the electronic property by which dissimilar chemical species are capable of forming chemical compounds...
  
   is the willingness of two or more element
  Element
  - Chemistry, electronics, or the geosciences :* Chemical element, a building block in chemistry* Electrical element, an abstract part of a circuit* Heating element, a device that generates heat by electrical resistance...
  
  s or compound
  Compound
  Compound may refer to:* Chemical compounds, combinations of two or more elements* Compound , a cluster of buildings having a shared purpose, usually inside a fence or wall...
  
  s to form a chemical or attractive bond of some type, and equally, as a term for the strength of that bond once formed.
• In philology
  Philology
  Philology is the study of language in written historical sources; it is a combination of literary studies, history and linguistics.Classical philology is the philology of Greek and Classical Latin...
  
  , a type of resemblance between 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...
  
  s, suggesting that such languages stem from a common stock;
• In philosophy
  Philosophy
  Philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...
  
  , shared or matching lines of thought, conclusions or objectives;
• In geology
  Geology
  Geology is the science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which it evolves. Geology gives insight into the history of the Earth, as it provides the primary evidence for plate tectonics, the evolutionary history of life, and past climates...
  
  , minerals and formations where evidence suggests common origins and constitutions.
• in natural history
  Natural history
  Natural history is the scientific research of plants or animals, leaning more towards observational rather than experimental methods of study, and encompasses more research published in magazines than in academic journals. Grouped among the natural sciences, natural history is the systematic study...
  
  , resemblances between biological communities (usually taxon
  Taxon
  |thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...
  
  s) that suggest that they are of a common origin, type or stock.

Various other meanings, media, and games

• Affinity (band)
  Affinity (band)
  Affinity were an English jazz-rock fusion band, active from mid 1968 to January 1971.-Origins:The origin of Affinity was, circa 1965 in the science department of the University of Sussex in Brighton, England...
  
  , A Jazz/Rock band active in the late 60s and early 70s
• Affinity (Philippines band), a collective of Manila's premier jazz musicians
• The Leper Affinity, a song from Blackwater Park
  Blackwater Park
  Blackwater Park is the fifth studio album by Swedish progressive death metal band Opeth. It was released on February 27, 2001 through Music for Nations and Koch Records...
  
   by Opeth
  Opeth
  Opeth is a Swedish heavy metal band from Stockholm, formed in 1990. Though the group has been through several personnel changes, singer, guitarist, and songwriter Mikael Åkerfeldt has remained Opeth's driving force throughout the years...
  
  
• Affinity (Fire Emblem), the numerous bonuses units in the videogame Fire Emblem have from sharing support conversations with one another
• "Affinity" (Stargate SG-1), a season 8 episode of Stargate SG-1
• Affinity (novel)
  Affinity (novel)
  Affinity is a 1999 historical fiction novel by Sarah Waters. It is the author's second novel, following Tipping the Velvet, and followed by Fingersmith.-Plot summary:...
  
  , 1999 novel by Sarah Waters
• Affinity (film)
  Affinity (film)
  Affinity is a 2008 UK film adaptation of Sarah Waters' 1999 novel Affinity; directed by Tim Fywell and screenplay by Andrew Davies.-Plot:...
  
  , a 2008 feature film based on Sarah Waters
  Sarah Waters
  Sarah Waters is a British novelist. She is best known for her novels set in Victorian society, such as Tipping the Velvet and Fingersmith.-Childhood:Sarah Waters was born in Neyland, Pembrokeshire, Wales in 1966....
  
  ' novel
• Elective Affinities
  Elective Affinities
  Elective Affinities , also translated under the title Kindred by Choice, is the third novel by Johann Wolfgang von Goethe, published in 1809. The title is taken from a scientific term once used to describe the tendency of chemical species to combine with certain substances or species in preference...
  
   - the concept of chemical affinities as a metaphor for human emotional affinities
• Affinity, an independent jazz
  Jazz
  Jazz is a musical style that originated at the beginning of the 20th century in African American communities in the Southern United States. It was born out of a mix of African and European music traditions. From its early development until the present, jazz has incorporated music from 19th and 20th...
  
   record label formed in California
  California
  California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
  
   in 1991
• See BMJ Group for Affinity (BMJ), a publishing partnership programme of the BMJ Publishing Group Ltd for independent journals