Id - Definition and Overview

The initialisms ID or id, or the word id, may refer to:

• identification (popular-speech abbreviation)
  • identity card (I.D. or ID)
• in computing, and particularly in the context of databases: an identifier
• Idaho (state code ID or abbreviation Id.)
• id Software, the computer game software developer
• Ego, Superego and Id, the psychological construct
• Indonesia (ISO 3166-1 alpha-2 country code, ID)
• Indonesian language (ISO 639 alpha-2, id)
• Intelligent design
• Industrial design
• the standard Latin abbreviation idem: compare ibid
• iD, RTE television programme
• ID (magazine)
• Influence diagram

• Looking for IfD instead? Try Wikimedia:Images for deletion

Note that many people pronounce many of the above usages using two syllables which spell out the abbreviation ("eye-dee"); but the psychological concept appears as a single syllable ("ihd").

See also: The Wizard of Id, wiktionary:ID