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.
These are unique identifiers that, in combination with other factors, help create stronger identity validation. Skip Sanzeri, Forbes.com, 13 June 2025 Rising identity theft risks: Your SSN is one of the most sensitive identifiers tied to your name. Kurt Knutsson, FOXNews.com, 9 June 2025 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. Eric Torres, Pitchfork, 9 June 2025 By cryptographically binding identity to unique device and network-level identifiers, like SIM ID, device ID, and phone number, Unibeam ensures that only the legitimate user can authenticate. Jon Stojan, USA Today, 7 June 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 30 Jun. 2025.

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