authenticate(redirected from authentications)
Also found in: Thesaurus, Legal, Encyclopedia.
tr.v. au·then·ti·cat·ed, au·then·ti·cat·ing, au·then·ti·cates
To establish the authenticity of; prove genuine: a specialist who authenticated the antique samovar. See Synonyms at confirm.
1. to establish as genuine or valid
2. to give authority or legal validity to
v.t. -cat•ed, -cat•ing.
1. to establish as genuine.
2. to establish conclusively the authorship or origin of.
3. to make authoritative or valid.
[1565–75; < Medieval Latin]
A challenge given by voice or electrical means to attest to the authenticity of a message or transmission.
Past participle: authenticated
Switch to new thesaurus
|Verb||1.||authenticate - establish the authenticity of something|
prove - obtain probate of; "prove a will"
attest, certify, evidence, manifest, demonstrate - provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sense of fairness"
1. To assure the certainty or validity of: