Authenticate
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To render authentic; to give authority to, by the
proof, attestation, or formalities required by law, or sufficient to
entitle to credit.Authenticate meaning & definition 1 of Authenticate.
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Prove or show (something) to be true, genuine, or valid.
Authenticate meaning & definition 2 of Authenticate.
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to prove that something is real, true, or what people say it is:
Authenticate meaning & definition 3 of Authenticate.