identifier

noun

iden·​ti·​fi·​er ī-ˈden-tə-ˌfī(-ə)r How to pronounce identifier (audio)
ə-
: one that identifies

Examples of identifier in a Sentence

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.
As the number of people in the database grew, DNA technology has advanced, protesters said, giving cops access to more kinds of biological identifiers. Ashley Belanger, ArsTechnica, 7 May 2026 Not to take anything away from the success of Boise State’s football team, but there’s one unmistakable identifier connected to the program known across the country outside of the wins. Larry Holder, New York Times, 6 May 2026 As a geographic identifier, the Bible Belt has never had precise boundaries. Encyclopedia Britannica, 30 Apr. 2026 Each bag has an identifier carved discreetly into its interior, a number that is uniquely its own. Mark Ellwood, Robb Report, 28 Apr. 2026 See All Example Sentences for identifier

Word History

First Known Use

1807, in the meaning defined above

Time Traveler
The first known use of identifier was in 1807

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Cite this Entry

“Identifier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/identifier. Accessed 14 May. 2026.

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