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, 22 July 2025 Government workers were forced to remove their pronoun identifiers in their email signatures. Jen Christensen, CNN Money, 21 July 2025 The database also included more typical personally identifying information like names, addresses, phone numbers, email addresses, and unique identifiers assigned to children's cases. Lily Hay Newman, Wired News, 16 July 2025 Polis’ office said the survey can only be filled out by one person per IP address (that’s the unique identifier for a device connected to the internet). Seth Klamann, Denver Post, 15 July 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 25 Jul. 2025.

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