identifier
Americannoun
plural
identifiers-
something, such as a name, number, code, label, etc., that serves to identify or represent a person or thing.
-
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.
-
a person who identifies someone or something.
noun
Other Word Forms
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.
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 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
A unique identifier number will be given to children across services, similar to an adult's national insurance number.
From BBC • Dec. 16, 2024
She doesn’t use it as Nessa’s identifier but instead, uses it to poke fun at people’s misplaced assumptions of Nessa.
From Salon • Dec. 5, 2024
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
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.
