validation

noun

val·​i·​da·​tion ˌva-lə-ˈdā-shən 

: an act, process, or instance of validating

especially : the determination of the degree of validity of a measuring device

Synonyms

• attestation
• confirmation
• corroboration
• documentation
• evidence
• proof
• substantiation
• testament
• testimonial
• testimony
• voucher
• witness

Examples of validation in a Sentence

I'm afraid we cannot act on your claim without validation.

Recent Examples on the Web

While much attention is given to the early stages of ideation and validation, in our experience managing startups in VisionX Partners, the Efficiency Phase is a critical yet frequently overlooked period. —Abdo Riani, Forbes.com, 23 May 2025

The claim is being reviewed under the Commission’s claim validation requirements and is the subject of external investigation. —David Chiu, People.com, 21 May 2025

Maybe the real validation, though, is not even needing it. —Matt Gelb, New York Times, 21 May 2025

Long-term safety concerns regarding implant materials, such as potential biocompatibility issues and the release of nanoparticles, require rigorous testing and validation. —Anne Schmitz, The Conversation, 20 May 2025

Word History

Etymology

valid(ate) + -ation, perhaps after French validation

First Known Use

circa 1656, in the meaning defined above

Phrases Containing validation

• self-validation

Rhymes for validation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation