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, 5 Nov. 2025 The change means states can now verify citizenship information without requiring a Department of Homeland Security identifier or full Social Security number, streamlining the process for election officials. Billal Rahman, MSNBC Newsweek, 4 Nov. 2025 Each row is a different variety and each plant is tagged with identifiers. Angela Velasquez, Sourcing Journal, 3 Nov. 2025 Aardvark has also been deployed across open-source projects, responsibly disclosing multiple vulnerabilities, ten of which have been assigned CVE identifiers. Neetika Walter, Interesting Engineering, 30 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 6 Nov. 2025.

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