authenticate
verb (used with object)
to establish as genuine.
authenticated
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past participleof authenticate.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
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past tense formof authenticate.past tense
Used to describe completed actions or previous habitual actions.
authenticateverb (used with object)to establish as genuine.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The company said it had not authenticated the two reviews identified, and removed them after we contacted them.
From BBC ● Oct. 15, 2026
If someone doesn’t have an authenticated IRS account already, getting started requires an account with ID.me, a business offering identity verification for government agencies, retailers and healthcare organizations.
From MarketWatch ● Jul. 23, 2026
Around 15 of such hats have been fully authenticated, most of them now held in museum collections, said Parich.
From Barron's ● Mar. 26, 2026
The next day, the open-source research outfit Bellingcat said it had authenticated a video showing a Tomahawk missile strike next to the school in Minab.
From Salon ● Mar. 11, 2026
I kept my hunch a secret but had the manuscript authenticated by an expert.
From "Book Scavenger" by Jennifer Chambliss Bertman
