identifier
Americannoun
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identifiers
plural
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something, such as a name, number, code, label, etc., that serves to identify or represent a person or thing.
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a book, computer application, or other source that one can use to identify something, such as a bird, plant, etc., by matching it with a sound, photo, or description in an inventory.
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a person who identifies someone or something.
noun
Other Word Forms
Derived Forms
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de-identifiernoun
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non-identifiernoun
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quasi-identifiernoun
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self-identifiernoun
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sub-identifiernoun
Inflected Forms
Nouns
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
That dollar amount served as a unique identifier in a separate disclosure table showing OBDC’s valuation methods for different categories of Level 3 investments.
From The Wall Street Journal ● May 13, 2026
The contact sent her a link to a chatbot on messaging app Telegram which told her they would be contacted by a person with a unique identifier.
From BBC ● May 25, 2025
The artist’s last name is written in block letters along one edge, but there’s some confusion over whether the artist or the school added it later as an identifier.
From Los Angeles Times ● Apr. 7, 2025
The U.S. government is no longer issuing identification documents with an “X” identifier, which could impact some intersex individuals, Lorshbough said.
From Salon ● Feb. 12, 2025
In the spot where the identifier should have been, there were instead a censor’s thick black box and the words “I.D. Temporarily Removed from System.”
From "Escape from Mr. Lemoncello's Library" by Chris Grabenstein
However, the investigator added, the company scrubs data to remove personal or business identifiers in case contractors aren’t abiding by its instructions.
From The Wall Street Journal ● Apr. 23, 2026
These patterns act as unique optical identifiers that are difficult to replicate, making them useful for anti-counterfeiting and traceability applications.
From Science Daily ● Apr. 21, 2026
“Secure ballot envelope identifiers provide a reliable, auditable mechanism to enforce Federal law without unduly burdening or infringing on the rights of eligible voters,” the order reads.
From Los Angeles Times ● Mar. 31, 2026
"We would like to reiterate that no payment details or order history information has been accessed and the impacted personal data remains limited to basic personal identifiers as advised previously," they said.
From BBC ● Sep. 28, 2025
She plays the tape backward and forward, stops and starts, scribbles down identifiers she missed.
From "Orphan Train" by Christina Baker Kline
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
