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 of validation

• evidence
• proof
• testimony
• documentation
• testament
• confirmation

Examples of validation in a Sentence

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

Recent Examples on the Web

Thought leadership, third-party validation and documented outcomes all travel into that meeting and argue on your behalf. — Laiba Tariq, Forbes.com, 23 Sep. 2026

The Season 2 renewal was validation the dark comedy had cut through, and Kudiabor praised the collaborative nature of Apple’s execs, with UFA Fiction in regular communication with Jay Hunt’s London office throughout the process. — Jesse Whittock, Deadline, 23 Sep. 2026

Turning battlefield actions into training data ARC said in its announcement that Army tactical units originated the requirement through operational validation. — Kaif Shaikh, Interesting Engineering, 23 Sep. 2026

Still hoping to find validation somewhere, Gen calls her mom. — Rafaela Bassili, Vulture, 22 Sep. 2026

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