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

As progressives fought on Tuesday to salvage some validation from the wreckage of Graham Platner’s Senate bid, his most important endorser on the left broke a conspicuous silence to try to nudge him out of the race. — David Weigel, semafor.com, 7 July 2026

Hays argues that true relational longevity requires active skill-building rather than relying on endless external validation. — Ginger Gentile, Forbes.com, 7 July 2026

Hesai’s sensors have also met the standards set by Tüv Rheinland and Dekra, which are independent third-party companies that specialize in product testing, safety validation and cybersecurity assessments. — Melissa Lee,paige Tortorelli,scott Zamost, CNBC, 7 July 2026

Instead of depending heavily on external suppliers for critical technologies, European governments and companies are trying to bring research, validation, manufacturing, and deployment closer together. — Atharva Gosavi, Interesting Engineering, 6 July 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