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.
Wedbush’s Michael Pachter notes that these changes came amid the rollout of Apple’s identifier for advertiser (IDFA) privacy changes, affecting how companies can access user data. Samantha Subin, CNBC, 11 Jan. 2025 Tracking the whale Every whale has a unique identifier — the underside of its tail — that helps in the tracking. Julianna Bragg, CNN, 12 Dec. 2024 With this switched off, any new app requests will be automatically denied and they will also be stopped from accessing your phone’s ad identifier. Kelvin Chan, The Denver Post, 15 Feb. 2025 This malware primarily targets crypto wallet recovery phrases but is also capable of exfiltrating login credentials, payment details, personal messages, location data and even biometric identifiers. Kurt Knutsson, Cyberguy Report, Fox News, 13 Feb. 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 12 Mar. 2025.

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