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Definition of id

id

/ɪd/
id

Plural:ids
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id Lexical Profile

id Game Scores & Validity

• noun

1

In psychoanalytic theory, the completely unconscious part of the psyche that serves as the source of instinctual impulses, primitive drives, and immediate gratification, operating according to the pleasure principle.

Example

"According to Freud, the ego must constantly mediate between the primal desires of the id and the moral constraints of the superego."


2

A freshwater ray-finned fish (Leuciscus idus) of the carp family Cyprinidae, native to larger rivers and lakes across northern Europe and western Asia, also commonly known as the ide or orfe.

Word Nuance & Usage

In psychoanalytic theory, 'id' (pronounced with a short 'i' as in 'lid') is one of the three parts of the psyche alongside the ego and superego, and should not be confused with the uppercase abbreviation 'ID' (identification).

• Rhymes for id

Word Origin & Etymology

Borrowed in the 1920s from Latin 'id' meaning 'it', used by English translators to render Sigmund Freud's German psychoanalytic term 'das Es' ('the It').

Cite this Entry


Wordmom. (2026). Definition of Id. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/id
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