authentication (B2)

noun

Pronunciation: /ɔːˌθɛntɪˈkeɪʃən/

Definition

The process of verifying that someone or something is who or what they claim to be.

Examples

• The system requires user authentication before granting access.

• Two-factor authentication adds an extra layer of security.

• The airport security performed a thorough authentication of all passengers' documents.

How to Use authentication

authentication of (prepositional phrase)

The act of verifying the identity or origin of something or someone. — "The authentication of the signature was confirmed by the notary."

authentication failed (collocation)

The process of verifying identity was unsuccessful. — "The authentication failed, so I couldn't access my account."

Synonyms of authentication

Words with a similar meaning to authentication:

• proof
• verification
• validation
• confirmation

Antonyms of authentication

Words with the opposite meaning to authentication:

• deception
• impersonation

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