verification

American  

[ver-uh-fi-key-shuhn] / ˌvɛr ə fɪˈkeɪ ʃən /

noun

1. the act of verifying.

2. the state of being verified. verify.

3. evidence that establishes or confirms the accuracy or truth of something.

   We could find no verification for his fantastic claims.

4. a formal assertion of the truth of something, as by oath or affidavit.

5. the process of research, examination, etc., required to prove or establish authenticity or validity.

6. Law. a short confirmatory affidavit at the end of a pleading or petition.

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verification British  

/ ˌvɛrɪfɪˈkeɪʃən /

noun

1. establishment of the correctness of a theory, fact, etc

2. evidence that provides proof of an assertion, theory, etc

3. law

   1. (formerly) a short affidavit at the end of a pleading stating the pleader's readiness to prove his assertions

   2. confirmatory evidence

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Other Word Forms

• nonverification noun
• preverification noun
• reverification noun
• unverificative adjective
• verificative adjective
• verificatory adjective

Etymology

Origin of verification

1515–25; < Medieval Latin vērificātiōn (stem of vērificātiō ), equivalent to vērificāt ( us ) (past participle of vērificāre; verify, -ate ¹ ) + -iōn- -ion

Example Sentences

For Claude, HealthEx needed my birth date, phone number, face scan and a driver’s license for verification.

From The Wall Street Journal • Apr. 4, 2026

The volume of fakes has largely outpaced the verification capacity of professional fact-checkers.

From Barron's • Apr. 2, 2026

Siloed student data systems and platforms further hinder that verification process, while limited federal funding forces many districts to rely on short-term grants and donations.

From Los Angeles Times • Apr. 1, 2026

The record-setting QR code and its verification process, including electron microscope readout, were conducted jointly by TU Wien and Cerabyte in front of witnesses.

From Science Daily • Mar. 29, 2026

“It says, ‘Your shoes will make you happy today,’” he tells her, voice dry, and passes the little slip across the table for her verification.

From "The Cruel Prince" by Holly Black