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

Even advanced theoretical models can miss key details, making experimental verification essential for understanding molecular structures.

From Science Daily • Apr. 7, 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

There are also concerns that under-15s will get around the age verification system by using virtual private networks or switching to newer platforms.

From Barron's • Mar. 31, 2026

The platform has since rolled out mandatory age verification worldwide, and has made changes to safety on its platform including blocking children from being able to chat to adults.

From BBC • Mar. 25, 2026

"I'm sorry, sir," he said, "but do you have some verification of your age? Your driver's license, perhaps?"

From "The Catcher in the Rye" by J. D. Salinger