Dictionaryauthenticateverify as genuine
verb

authenticate

aw-THEN-tih-kayt/ɔːˈθentɪkeɪt/

Confirm that someone or something is genuine.

A currency specialist authenticates a banknote with a UV detector.

An older currency specialist authenticates a banknote with a UV detector: hidden security fibers glow beneath the lamp, and the detector displays a green check confirming a genuine note.
Etymology

The adjective meaning “genuine” becomes a verb meaning to render something authentic or establish its credibility. In the selected sense, authentication proves genuineness rather than creating it.

In context

CNA Insider28:03
different labs developed testing to authenticate the honey and detect if there is any fraudulent sugars in it.
Fake Honey: Why It's More Common Than You Think | Talking Point | Full Episode

More examples

  • The museum hires an expert to authenticate the painting.
  • The app authenticates users before granting access to their accounts.
  • The collector refuses to buy the autograph until it is authenticated.

Forms

authenticate · authenticates · authenticated · authenticating

authentication noun — Confirmation that someone or something is genuine.

authentic adjective — Genuine rather than fake or copied.

Similar words

verify
Checks accuracy or truth, not necessarily identity or genuineness.
certify
Formally confirms authenticity, accuracy, or compliance with specified standards.