a means of identification, as a card or bracelet containing official or approved identification information.
verb (used with object), ID'd or IDed or ID'ed, ID'ing or IDing.
to identify.
to issue an ID to: Go to the admissions office if you haven't been ID'd yet. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
id1 (ɪd)
psychoanal the mass of primitive instincts and energies in the unconscious mind that, modified by the ego and the superego, underlies all psychic activity
[C20: New Latin, from Latin: it; used to render German Es]

the internet domain name for

abbreviation for
1.  Idaho
2.  identification (document)
3.  Also: i.d inside diameter
4.  Intelligence Department
5.  Also: i.d intradermal

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1924, in Joan Riviere's translation of Freud's "Das Ich und das Es," from L. id "it" (translation of Ger. es "it" in Freud's title), used in psychoanalytical theory to denote the unconscious instinctual force.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

id (ĭd)
In psychoanalytic theory, the division of the psyche that is totally unconscious and serves as the source of instinctual impulses and demands for immediate satisfaction of primitive needs.

ID 2
infecting dose

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Cultural Dictionary

id definition

In Freudian theory, the part of the psyche associated with instinctual, repressed, or antisocial desires, usually sexual or aggressive. In its efforts to satisfy these desires, the id comes into conflict with the social and practical constraints enforced by the ego and superego. (See also pleasure principle.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang Dictionary

ID definition

  1. n.
    some kind of identification card. (Initialism.) : Can you show me an ID?
  2. tv.
    to determine the identity of someone; to check someone for a valid identification card. : The cops IDed the driver in less than thirty minutes.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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American Heritage
Abbreviations & Acronyms
  1. Idaho

  2. identification

  3. infecting dose

  4. infectious disease

  5. insect damage

  6. Intelligence Department

  7. intradermal

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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