validation

noun

val·​i·​da·​tion ˌva-lə-ˈdā-shən How to pronounce validation (audio)
Synonyms of validationnext
: an act, process, or instance of validating
especially : the determination of the degree of validity of a measuring device

Examples of validation in a Sentence

I'm afraid we cannot act on your claim without validation.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The latest update confirms that the systems have entered real-world validation phases with real defense customers. Kaif Shaikh, Interesting Engineering, 27 Feb. 2026 This can lead to mental health challenges like anxiety, depression or a constant state of longing, focusing on external validation rather than internal self-worth. Rachel Hale, USA Today, 27 Feb. 2026 Still, when Bentley confirmed the result, officially designating me a deep winter, the validation felt oddly triumphant. Conçetta Ciarlo, Vogue, 26 Feb. 2026 Winning gold gave McAvoy some career validation. Steve Conroy, Boston Herald, 26 Feb. 2026 See All Example Sentences for validation

Word History

Etymology

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

First Known Use

circa 1656, in the meaning defined above

Time Traveler
The first known use of validation was circa 1656

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Cite this Entry

“Validation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/validation. Accessed 3 Mar. 2026.

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