ID

ID, Id, id or I.D. may refer to:

• Identity document, any document used to verify a person's identity
• Identifier, a symbol which uniquely identifies an object or record

Arts and entertainment

Film and television

• I.D. (1995 film), a British film directed by Philip Davis
• I.D. (2012 film), an Indian film directed by Kamal K. M.
• Id, alternative title for Ido, a 2005 film by director Kei Fujiwara
• "I.D." (Law & Order), an episode of Law & Order
• Investigation Discovery, an American cable channel

Gaming

• Id (Xenogears), a character in the video game
• iD (video game), a 1980s video game by Mel Croucher
• id Software, the computer game software developer behind the Quake and Doom series, among others

Literature

• Id (comics), a manhwa by Kim Daewoo, art by A. T. Kenny
• 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
• Id, a fictional kingdom in The Wizard of Id, an American comic strip

Music

• Id (Siddharta album), 1999
• [id] (Veil of Maya album), 2010
• I.D. (album), a 1989 album by The Wailers Band
• ID, an album by Anna Maria Jopek

Other media

• I.D. (play), 2003 British play by Anthony Sher

Businesses and organizations

• iD Mobile, a telephone network owned by Carphone Warehouse
• Independent Democrats, a political party in South Africa
• Interlink Airlines (IATA airline code ID)

Design and engineering

• Industrial design
• Information design
• Interaction design
• Interior design
• Instructional design, the study of creating better instructional experiences

Places

• İd, a town in Turkey
• Idaho, US (postal abbreviation ID)
• Indonesia, ISO 3166-1 alpha-2 country code "ID"
  • .id, Internet Top Level Domain code for Indonesia

Science, technology, and mathematics

Biology and medicine

• Ide (fish), also spelled Id
• Infectious disease
• Infectious dose
• Intellectual disability

Computing

• id, the generic object datatype in the Objective-C programming language
• Id (programming language), a parallel functional programming language
• iD (software), editor for OpenStreetMap geodata
• Instruction decoder, a decoder in CPUs
• Internet Draft, a working document of the IETF

Mathematics

• Influence diagram, a graphical and mathematical representation of a decision situation
• Inside diameter, also 'inner diameter'; a dimension commonly used to specify the size of tubing or pipe
• Identity function, a function that always returns the same value that was used as its argument

Psychology

• Id, one of the psychic apparatus defined in Sigmund Freud's structural model of the psyche
• One of the parts of the psychic apparatus, in socionics

Other uses

• Id., Latin, short for idem, "the same", used in legal citations for the previously cited source
• ID (classification), a Paralympic rowing classification
• Citroën ID, a variant of the Citroën DS car
• Inclusive Democracy, a project that aims for direct, economic, social, and ecological democracy
• Indonesian language (ISO 639-1 code "id")
• Intelligent design, a pseudo-scientific argument for the existence of a god
• International dollar, common name for the Geary–Khamis dollar, a hypothetical unit of currency
• Invoice discounting, a form of short-term borrowing for businesses

See also

• Identification (disambiguation)