verb
To prove that something is genuine or has not been changed.
An expert authenticated the painting.
Common phrases & grammar
authenticate a document · authenticate a painting
American English
How to pronounce authenticate
verbB2
awTHEHNtuhkayt
/ɔˈθɛn.təˌkeɪt̚/
4 syllables · Stress the second syllable.
To prove that something is genuine or has not been changed.
What to listen for
Usual pronunciation/ɔˈθɛn.təˌkeɪt̚/
Common merged-vowel pronunciation/ɑˈθɛn.təˌkeɪt̚/
Meanings & examples
verbtechnical
To check that a user is really who they claim to be before allowing access to a system.
The app authenticates users with a password.
Good to know
Authentication checks identity; it does not necessarily give permission to use something.
Common phrases & grammar
authenticate a user · authenticate with a password