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to authenticate
01
to confirm the truth or origin of something
Transitive: to authenticate sth
Example
The unique serial number on the painting authenticated its origin.
Her signature authenticated the legal document.
02
to verify a device, user, or process before an access to the computer's resources is allowed
Transitive: to authenticate a device or user
Intransitive
Example
The system will authenticate your credentials before granting access.
You need to authenticate your account with a password and a security code.
