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.
The new update significantly broadens this scope to include high-stakes government identifiers. Aamir Khollam, Interesting Engineering, 10 Feb. 2026 By abandoning standard categorization, Otlet could tag a single fact with multiple topics, time periods, and other relevant identifiers. Big Think, 9 Feb. 2026 To keep both out of harm’s way, certain identifiers and details that could put them at risk are not mentioned here. Georg Szalai, HollywoodReporter, 5 Feb. 2026 Smartphones also transmit location signals, device identifiers, advertising IDs, usage patterns and app behavior data. Kurt Knutsson, FOXNews.com, 3 Feb. 2026 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 14 Feb. 2026.

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