authenticate implies establishing genuineness by adducing legal or official documents or expert opinion.

AUTHENTICATE definition: 1. to prove that something is real, true, or what people say it is: 2. to prove, especially using…. Learn more.

If you authenticate something, you prove or confirm that it is true. Unfortunately, the map that might have authenticated the tale was lost in Canada. [VERB noun] There have now been well …

Definition of authenticate verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Apr 6, 2026 · authenticate (third-person singular simple present authenticates, present participle authenticating, simple past and past participle authenticated) (transitive) To render authentic; to give …

authenticate (ɔːˈθɛntɪˌkeɪt) vb (tr) 1. to establish as genuine or valid 2. to give authority or legal validity to

When you authenticate something, you establish that it’s the real thing. If you authenticate a painting, for example, you’re sure that it's an original work, not a copy.

Authenticate definition: To establish the authenticity of; prove genuine.

authenticate, v. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Experts authenticated the painting. The signature has been authenticated.