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.
We, in collaboration with our partners, store and/or access information on a user's device, including but not limited to IP addresses, unique identifiers, and browsing data stored in cookies, in order to process personal data. Jazz Monroe, Pitchfork, 15 Oct. 2025 The team detected unprotected internet traffic from US military sea vessels, including ship names and identifiers. Kaif Shaikh, Interesting Engineering, 14 Oct. 2025 Under a 2023 state law, California courts seal records for minors under 18 years of age who change their name and gender identifier to protect their privacy. Lia Russell, Sacbee.com, 14 Oct. 2025 This includes biometric identifiers such as facial images and fingerprints, along with passport details and entry and exit dates. Alia Shoaib, MSNBC Newsweek, 13 Oct. 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 19 Oct. 2025.

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