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WordReference Random House Learner's Dictionary of American English © 2024au•then•ti•cate /ɔˈθɛntɪˌkeɪt/USA pronunciation v. [~ + object], -cat•ed, -cat•ing. - to establish (something) as genuine, real, or true:The signature was not authenticated.
- to establish or prove conclusively the origin of (a painting, book, etc.): to authenticate a painting.
au•then•ti•ca•tion /ɔˌθɛntɪˈkeɪʃən/USA pronunciation n. [uncountable]The signature is subject to authentication.[countable* usually singular]I need an authentication on a credit card, please. WordReference Random House Unabridged Dictionary of American English © 2024au•then•ti•cate (ô then′ti kāt′),USA pronunciation v.t., -cat•ed, -cat•ing. - to establish as genuine.
- to establish the authorship or origin of conclusively or unquestionably, chiefly by the techniques of scholarship:to authenticate a painting.
- to make authoritative or valid.
- Medieval Latin authenticātus made authentic (past participle of authenticāre). See authentic, -ate1
- 1565–75
- 1.See corresponding entry in Unabridged confirm, validate, substantiate.
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