a second examination or verification
chess a simultaneous check from two pieces brought about by moving one piece to give check and thereby revealing a second check from another piece
An Americanism dating back to 1950–55
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Moreover, workers may also have outsize expectations around AI’s automation capabilities, with many of the current tools still requiring workers to double check the completed work for errors.
From Barron's ● Mar. 27, 2026
"I would wake up through the night just to double check my phone that I haven't slept through a phone call," his wife added.
From BBC ● Feb. 9, 2026
If in doubt, call your insurance company to double check.
From MarketWatch ● Dec. 10, 2025
Last year one of its accounts posted a video inside the REI Soho bathroom to double check it was still open and provided free menstrual products to visitors.
From The Wall Street Journal ● Oct. 17, 2025
No double check 'cause it's over a mile from Building A—outside the safety perimeter.
From The Stowaway by Heiner, Alvin
National Lottery players are being asked to double-check their tickets as one worth £12m has yet to be claimed.
From BBC ● Jun. 22, 2026
Just double-check that the spot it chooses is actually open — AI chatbots don’t always use the most up-to-date information.
From MarketWatch ● May 19, 2026
The first time he put the camera behind a row of fans, I had to look over the edge of my 3D glasses to double-check that those waving arms weren’t really in my theater.
From Los Angeles Times ● May 7, 2026
It means bad AI output compounded by lazy humans who can’t be troubled to double-check.
From Barron's ● May 6, 2026
“After we clean up I better head out to the jobsite and double-check to make sure everything’s tied down and covered. Want to come?”
From "Storm Runners" by Roland Smith
Even though she has filters set up, Tabacnic always double-checks to make sure her matches are actually where the dating app says they are.
From MarketWatch ● Jun. 3, 2026
For example, one arm of the AI generates the response, and another instantly double-checks it to make sure it’s safe before letting it through to the user.
From Los Angeles Times ● Jul. 22, 2025
In Colorado, Dr. Michelle Barron said the consistently low COVID-19 hospitalizations prompted smiles among staff, even as she double-checks the numbers to make sure they’re actually correct.
From Seattle Times ● Apr. 1, 2022
That’s why a music conductor I know always double-checks with himself just before he hears “maestro to the pit” and must head to the podium to conduct an opera.
From Washington Post ● Jul. 2, 2021
“Ellen,” says Mallory as she double-checks her clipboard.
From "Dumplin'" by Julie Murphy
After hearing its predictions for the Sweet 16 round I double-checked the data.
From MarketWatch ● Mar. 18, 2026
They double-checked that both of their names were on all accounts.
From The Wall Street Journal ● Feb. 28, 2026
The film’s access coordinator Chantelle Nassari also equipped Bode with a fully accessible trailer, double-checked the day’s pathways and ensured the actor had what she needed to be able to perform.
From Los Angeles Times ● Nov. 20, 2024
Mr Spokes said he felt like he had "double-checked" everything before transferring the money, but all the information he had been provided "was part of the scam".
From BBC ● Oct. 9, 2024
After we double-checked our answers with each other, we gathered our books.
From "Keep It Together, Keiko Carter" by Debbi Michiko Florence
Charlotin believes that the superficially authentic tone of AI bots’ output may encourage overworked or inattentive lawyers to accept bogus citations without double-checking.
From Los Angeles Times ● May 22, 2025
The state appears to have presented a figure without fully explaining its methodology or double-checking the information, said Becker, who is a former senior trial attorney in the voting section of the U.S.
From Salon ● Oct. 15, 2024
For him, grappling with the problem properly will involve training people to be more critical about the content they are consuming, including viewing everything with "a healthy scepticism", and double-checking sources.
From BBC ● Mar. 26, 2024
By double-checking that the hyperplane function contains squared values, a human can easily verify that the function is positive, which means the trajectory is collision-free, Amice explains.
From Science Daily ● Mar. 7, 2024
He fidgeted and fussed around, double-checking Brian’s figures, chewing on a pencil, pacing the floor.
From "The Chocolate War" by Robert Cormier
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.
