authenticate

Definitions

To prove or show something to be true, genuine, or valid.

To verify the identity of a user, process, or device, often as a prerequisite to allowing access to resources in a computer system.

Examples

The security system requires a fingerprint scan to authenticate your identity.

Experts were brought in to authenticate the rare painting before it went to auction.

You must enter your password to authenticate the connection to the server.

Synonyms

validate verify certify confirm attest corroborate substantiate

Antonyms

falsify counterfeit invalidate disprove refute deny discredit