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. Matthew Strauss, Pitchfork, 15 Sep. 2025 Stream keys are the unique identifiers that platforms like Twitch, Twitter, and others generate to allow streaming software to connect without using individual user credentials each time. Alan Henry, PC Magazine, 12 Sep. 2025 Digital fingerprinting collates an array of data from your phone — your IP address, device model and OS, time zone, setup and anything else if can get — to create a unique identifier in aggregate, even if each individual data snippet us useless on its own. Zak Doffman, Forbes.com, 10 Sep. 2025 Color heightens visual memory: anniversary Tumi Red and translucent silver metallics emerge as instant identifiers. Footwear News, 8 Sep. 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 18 Sep. 2025.

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