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 authenticates
verbB2
awTHEHNtuhkayts
/ɔ.ˈθɛn.tə.ˌkeɪts/
4 syllables · Stress the second syllable.
Related entry: authenticate
To prove that something is genuine or has not been changed.
Practice out loudMeanings & 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