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.
Establish clear, universally recognized definitions and standards for critical elements of the data platform — such as customer identifiers, transaction volumes and product details — that power analytics and AI applications. Sanjay Srivastava, Forbes.com, 28 Apr. 2025 Every digital scrap is sucked into a huge data vacuum: a user’s location information, WiFi networks, SIM card, and other device identifiers are routinely collected by apps and browsers and fed into a vast data bazaar. Ronald J. Deibert, Foreign Affairs, 24 Apr. 2025 The note features a cryptic math puzzle that, when solved correctly using a unique personal identifier, reveals the phone number of the person who found the wallet. Josh Hammer, MSNBC Newsweek, 1 Apr. 2025 The audience never gets to know anyone by name, profession or any other identifier. Murtada Elfadl, Variety, 27 Mar. 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

Browse Nearby Words

Cite this Entry

“Identifier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/identifier. Accessed 3 May. 2025.

More from Merriam-Webster on identifier

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!