identity

== English == === Etymology === From Middle French identité, from Latin identitās. === Pronunciation === (Received Pronunciation) IPA(key): /aɪˈdɛntɪti/ (General American) IPA(key): /aɪˈdɛn(t)ɪti/, /aɪˈdɛn(t)əti/, [aɪˈdɛnɪɾi], [aɪˈdɛnəɾi] (General Australian) IPA(key): /ɑɪˈdentəti/ === Noun === identity (countable and uncountable, plural identities) Sameness, identicalness; the quality or fact of (several specified things) being the same. Synonyms: see Thesaurus:sameness Coordinate terms: equivalence; similarity The difference or character that marks off an individual or collective from the rest of the same kind; selfhood; the sense of who something or someone or oneself is, or the recurring characteristics that enable the recognition of such an individual or group by others or themselves. Synonyms: individuality; see also Thesaurus:selfhood A name or persona—a mask or appearance one presents to the world—by which one is known. (mathematics) An equation which always holds true regardless of the choice of input variables. Synonym: identity function (algebra, computing) Any function which maps all elements of its domain to themselves. (algebra) An element of an algebraic structure which, when applied to another element under an operation in that structure, yields this second element. (Australia, New Zealand) A well-known or famous person. Synonyms: celebrity, personality ==== Hyponyms ==== ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === References === “identity”, in OneLook Dictionary Search. identity in Keywords for Today: A 21st Century Vocabulary, edited by The Keywords Project, Colin MacCabe, Holly Yanacek, 2018. William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “identity”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC. “identity”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.