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id

/ɪd/ noun

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about id at Wordnik → Where our words come from →

  1. A state in the Rocky Mountains.
  2. A card or badge used to identify the bearer.
    you had to show your ID in order to get in
  3. (psychoanalysis) primitive instincts and energies underlying all psychic activity.

Origin

From New Latin id (“it”), chosen by Freud’s translator as a translation of his use of German Es (“it”) as a noun for this concept from the pronoun es (“it”).

From Wiktionary, via Kaikki.org (CC BY-SA)