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.
Bluesky is unique among social platforms by offering a dual identifier system. Allbusiness, Forbes, 19 Mar. 2025 Every single day, Ulmer and Bullis would flag dangerous pests that needed to be quarantined — and were specifically sent to their national lab because regional identifiers weren’t sure if the strange bug that fell out of a flower or slithered over a wooden pallet posed a true threat. Suzy Khimm, NBC News, 7 Mar. 2025 Device identifiers: Technical information that can determine when someone switches their SIM card to a different phone. Lars Daniel, Forbes, 7 Mar. 2025 That includes social media identifiers, or handles. Russel Honoré, Newsweek, 6 Mar. 2025 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 1 Apr. 2025.

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