authenticator
Americannoun
-
a person or thing that authenticates.
-
Cryptography. a code used to authenticate a previously transmitted code.
Etymology
Origin of authenticator
First recorded in 1860–65; authenticate + -or 2
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.
So too is a Louis Vuitton Neverfull bag, which lands at the workstation of high-value authenticator Tetiana Byndiu.
From The Wall Street Journal ● Jan. 21, 2026
Elsewhere in the warehouse, an authenticator uses a device smaller than a stapler to scan a Louis Vuitton tote to help determine whether the leather, stitching and branding are authentic.
From The Wall Street Journal ● Jan. 21, 2026
He also recommended adding a PIN number to the sim card, which can be done in a phone's settings, and the use of authenticator apps to generate random codes, instead of ones sent by text.
From BBC ● Mar. 3, 2025
But some, like OpenAI’s tool and Microsoft’s authenticator, are only available to selected partners and not the public.
From Seattle Times ● May 7, 2024
But here among America’s governors and statesmen was a simple authenticator of humane ideals.
From The Invisible Censor by Francis Hackett
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.
