iden·​ti·​fi·​er | \ ī-ˈden-tə-ˌfī(-ə)r How to pronounce identifier (audio) , ə- \

Definition of identifier

: one that identifies

Examples of identifier in a Sentence

Recent Examples on the Web If the name, address, signature or some other identifier doesn’t match the voter registration records, the voter will have to cast a provisional ballot, which only will be counted after it’s been vetted by the board after Election Day. Dan Horn, The Enquirer, "Trump suggested voting twice. Turns out, hundreds try and fail every year.," 3 Sep. 2020 The unique number, assigned to iPhone customers, allows advertisers to track their movements around websites and apps by following that unique identifier. Washington Post, "Apple makes a privacy change, and Facebook and advertising companies cry foul," 28 Aug. 2020 For example, Facebook, a local shopping app, and a local weather app might all access that identifier. Kate Cox, Ars Technica, "iOS 14 privacy settings will tank ad targeting business, Facebook warns," 26 Aug. 2020 On Amazon, every product is given a unique identifier, a string of numbers called an ASIN. Louise Matsakis, Wired, "How Four Brothers Allegedly Fleeced $19 Million From Amazon," 20 Aug. 2020 The app only records unique identifier numbers of other devices that come into close proximity. Dennis Pillion |, al, "Alabama college students must report symptoms online after testing negative," 3 Aug. 2020 If a cyclone forms in one part of the ocean but crosses into an area that uses a different name, the storm’s identifier will change. Kimberly Holland, Southern Living, "What’s the Difference Between a Typhoon and a Hurricane?," 10 July 2020 The term was initially used by Native Americans as a self-identifier during negotiations with the French, but morphed into a slur as non-Indigenous colonizers began to use it in the 19th and 20th centuries. NBC News, "FedEx requests Washington Redskins change team name," 2 July 2020 But on Wednesday, Zoom seemed to have solved the conundrum by requiring unpaid accounts to submit a phone number or other identifier before using end-to-end encryption. Lily Hay Newman, Wired, "Zoom Reverses Course and Promises End-to-End Encryption for All Users," 17 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'identifier.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of identifier

1807, in the meaning defined above

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The first known use of identifier was in 1807

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Last Updated

11 Sep 2020

Cite this Entry

“Identifier.” Dictionary, Merriam-Webster, Accessed 20 Sep. 2020.

More from Merriam-Webster on identifier

Nglish: Translation of identifier for Spanish Speakers

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