\ ˈid How to pronounce id (audio) \

Definition of id

 (Entry 1 of 7)

: the one of the three divisions of the psyche in psychoanalytic theory that is completely unconscious and is the source of psychic energy derived from instinctual needs and drives — compare ego, superego

Definition of id (Entry 2 of 7)

idem
\ ˈī-ˈdē How to pronounce ID (audio) \
plural ID's or IDs

Definition of ID (Entry 3 of 7)

: a document (such as a card) bearing identifying information about and often a photograph of the individual whose name appears on it

called also ID card, identification card, identity card

ID

verb
\ ˈī-ˈdē How to pronounce ID (audio) \
ID'd or IDed; ID'ing or IDing

Definition of ID (Entry 4 of 7)

transitive verb

: identify ID'd the thief

Definition of ID (Entry 5 of 7)

1 Idaho
2 identification
3 independent distributor
4 industrial design
5 often not capitalized inside diameter; inner diameter; internal diameter
6 often not capitalized inside dimensions
7 intellectual disability; intellectually disabled
8 intelligence department

Definition of -id (Entry 6 of 7)

1 : one belonging to a (specified) dynastic line Abbasid
2 : meteor associated with or radiating from a (specified) constellation or comet Perseid

Definition of -id (Entry 7 of 7)

: body : particle chromatid

Examples of id in a Sentence

Verb The police have not yet ID'd the victim. studies that show that eyewitnesses are surprisingly unreliable when called upon to ID the perpetrators of crimes

First Known Use of id

Noun (1)

1924, in the meaning defined above

Noun (2)

1941, in the meaning defined above

Verb

1944, in the meaning defined above

History and Etymology for id

Noun (1)

New Latin, from Latin, it

Noun suffix (1)

in sense 1, from Latin -ides, masculine patronymic suffix, from Greek -idēs; in sense 2, from Italian -ide, from Latin -id-, -is, feminine patronymic suffix, from Greek

Noun suffix (2)

probably from Latin -id-, -is, feminine patronymic suffix, from Greek

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Dictionary Entries Near id

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id

ID

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Cite this Entry

“Id.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/id. Accessed 1 Oct. 2022.

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More Definitions for id

ID

abbreviation

Kids Definition of ID

1 Idaho
2 identification

id

noun
\ ˈid How to pronounce id (audio) \

Medical Definition of id

 (Entry 1 of 4)

: the one of the three divisions of the psyche in psychoanalytic theory that is completely unconscious and is the source of psychic energy derived from instinctual needs and drives — compare ego, superego

id

noun

Medical Definition of id (Entry 2 of 4)

: a skin rash that is an allergic reaction to an agent causing an infection a syphilitic id tinea pedis and the vesicular ids arising from itJournal of the American Medical Association — compare bacterid

id

abbreviation

Medical Definition of id (Entry 3 of 4)

the same

ID

abbreviation

Medical Definition of ID (Entry 4 of 4)

1 identification
2 inside diameter; internal diameter
3 intellectual disability; intellectually disabled
4 intradermal

History and Etymology for id

Abbreviation

Latin idem

id.

abbreviation

Legal Definition of id.

idem

More from Merriam-Webster on id

Nglish: Translation of id for Spanish Speakers

Britannica English: Translation of id for Arabic Speakers

Britannica.com: Encyclopedia article about id

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