{{Wiktionary|ID|id|I.D.|Appendix:Variations of "id"}} '''ID''' or its variants may refer to: * Identity document, a document used to verify a person's identity * Identifier, a symbol which uniquely identifies an object or record {{tocright}}

==People== * I. D. Ffraid (1814–1875), Welsh poet and Calvinistic Methodist minister * I. D. McMaster (1923–2004), American assistant district attorney * I. D. Serebryakov (1917–1998), Russian lexicographer and translator

==Places== * İd or Narman, a town in Turkey * Idaho, US (postal abbreviation ID) * Indonesia, ISO 3166-1 alpha-2 country code "ID" ** Indonesian language, ISO 639-1 language code "ID"

==Arts, entertainment, and media== ===Music=== * The Id (band), an English new wave/synthpop band * New:ID, an upcoming Filipino boy band

====Albums==== * ''I.D.'' (album), a 1989 album by The Wailers Band * ''ID'' (Michael Patrick Kelly album), a 2017 studio album by Michael Patrick Kelly * ''Id'' (Siddharta album), 1999 * [[id (Veil of Maya album)|''[id]'' (Veil of Maya album)]], 2010 * ''ID'', an album by Anna Maria Jopek * ''The Id'' (album), a 2001 studio album by Macy Gray

====Songs==== * "ID" (song), a 2015 single by Kygo * "I.D.", a 2004 song by Kasabian from their self-titled album * "The I.D.", a 1998 song by Moloko from their album ''I Am Not a Doctor''

===Periodicals=== * ''I.D.'' (magazine), an American magazine focusing on Architecture, Graphic and Industrial Design * ''i-D'', a British fashion magazine * ''Ideas and Discoveries'' (''i.D.''), a magazine covering science, with heavy interest in social science

===Television=== * "I.D." (''Law & Order''), an episode of ''Law & Order'' * Investigation Discovery, an American cable television channel

===Film=== * ''I.D.'' (1995 film), a British film about football hooliganism * ''I.D.'' (2012 film), an Indian Hindi drama * ''The Id'' (film), a 2016 American thriller/horror film

===Other uses in arts, entertainment, and media=== * ''I.D.'' (play), 2003 British play by Anthony Sher * ''Id'' (comics), a manhwa by Kim Daewoo, art by A. T. Kenny' * Id, a fictional kingdom in ''The Wizard of Id'', an American comic strip * ''iD'' (video game), a 1986 computer game * Investigation Discovery, stylized as "ID", an American pay television network

==Brands and enterprises== * ID (public relations), a public relations firm * ID Labs, an American music production and engineering team * iD Mobile, a telephone network owned by Carphone Warehouse * Interlink Airlines (IATA airline code ID), an airline based in Johannesburg, South Africa * Batik Air (IATA airline code ID), an airline based in Jakarta, Indonesia * Citroën ID, a variant of the Citroën DS car * Volkswagen ID. series, a series of concept cars that have been promoted into production * id Software, an American video game developer

==Finance== * International dollar, common name for the Geary–Khamis dollar, a hypothetical unit of currency * Invoice discounting, a form of ''Factoring (finance)'' in the UK

==Politics== * Inclusive Democracy, a project that aims for direct, economic, social, and ecological democracy * Independent Democrats, a political party in South Africa * Identity and Democracy, a political group in the European Parliament

==Science, technology, and mathematics== ===Biology and medicine=== * Ide (fish), also spelled Id * Infectious disease * Infectious dose * Insomnia disorder * Intellectual disability, a generalized neurodevelopmental disorder

===Computing=== * Id (programming language), a parallel functional programming language * iD (software), an editor for OpenStreetMap geodata * id (Unix), a command to retrieve group and user identification * .id, the Internet Top Level Domain code for Indonesia * id, the generic object datatype in the Objective-C programming language * Instruction decoder, a decoder in CPUs * Internet Draft, a working document of the IETF

===Design and engineering=== * Industrial design, a process of designing products for mass production * Information design, the practice of presenting information in a way that fosters understanding * Inside diameter, also 'inner diameter' or 'I.D.'; a dimension commonly used to specify the size of tubing or pipe * Interaction design, the practice of designing interactive digital products, environments, systems, and services * Interior design, the art and science of enhancing the interior of a building * Instructional design, the study of creating better instructional experiences

===Mathematics=== * Identity function, a function that always returns the same value that was used as its argument * Influence diagram, a graphical and mathematical representation of a decision situation * Icosidodecahedron, a uniform polyhedron

===Psychology=== * Id, one of the Id, ego and superego psychic apparatus defined in Sigmund Freud's structural model of the psyche

==Other uses== * ''(law) Id.'', Latin, short for ''idem'' (translation: "the same"), used in legal citations to refer to the previous citation * ''(linguistics)'' Indonesian language (ISO 639-1 code "id"), a standardized register of Malay * ''(linguistics)'' Id (cuneiform), a common-use sign in cuneiform texts * ''(philosophy)'' Intelligent design, a pseudoscientific argument for the existence of God * ''(sports)'' ID (classification), a Paralympic rowing classification * A US Navy hull registration number prefix: Identification number (ID)

==See also== * 1D (disambiguation) * LD (disambiguation) * Identification (disambiguation)

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