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 aren’t just brand identifiers. — Dave Schilling contributing follow, Los Angeles Times, 9 June 2026 The suppliers often market the drugs by listing their chemical identifier and social media contact details. — Jonathan Moens — Bellingcat, STAT, 18 June 2026 Each has recognizable identifiers and can carry risks of contracting different illnesses. — Sophie Lindberg, Kansas City Star, 8 June 2026 The city uses the PassportParking app, a mobile-phone payment option using license plate numbers as unique identifiers that allows users to pay for parking with a credit or debit card. — Mary Divine, Twin Cities, 10 June 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

Rhymes for identifier

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Browse Nearby Words

identificatory
identifier
identify
See all Nearby Words

Cite this Entry

“Identifier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/identifier. Accessed 10 Jul. 2026.

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More from Merriam-Webster on identifier

Nglish: Translation of identifier for Spanish Speakers

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