double check
noun
a simultaneous check by two pieces in which the moving of one piece to give check also results in discovering a check by another piece.
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double check
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double-check
double-checkverb (used with or without object)to check twice or again; recheck.
double check
1 Americannoun
Chess.
double-check
2
American
[duhb-uhl-chek]
/ ˈdʌb əlˈtʃɛk /
verb (used with or without object)
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double-checks,
present (3rd person singular)
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double-checked,
past participle, past
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double-checking
present participle
noun
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double-checks
plural
double-check
British
verb
noun
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a second examination or verification
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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
Other Word Forms
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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double-checksimple
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double-checkssimple
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have double-checkedperfect
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has double-checkedperfect
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am double-checkingprogressive
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are double-checkingprogressive
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is double-checkingprogressive
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have been double-checkingperfect progressive
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has been double-checkingperfect progressive
Past
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double-checkedsimple
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had double-checkedperfect
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was double-checkingprogressive
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were double-checkingprogressive
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had been double-checkingperfect progressive
Future
Etymology
Origin of double-check
An Americanism dating back to 1950–55
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:
It said various errors were found in the record-keeping, with inspectors advising: “He just needs to double check his work.”
From The Wall Street Journal ● Jun. 7, 2026
He suggested airline passengers double check with their airline to make sure their reservation is intact.
From MarketWatch ● Apr. 28, 2026
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
"We come down about twice a week, just to double check on them, and to make sure the water is running right."
From BBC ● Aug. 11, 2025
I must check it up—and double check it—then I'm going back to the studio to triple check it.
From The Film Mystery by Arthur B. (Arthur Benjamin) Reeve
A lot will depend on how you use the tool, what questions you ask and whether you verify the sources used and double-check the findings.
From MarketWatch ● Aug. 28, 2026
"I've actually pulled off at the side of the road before a bridge just to double-check I'm the right height," he said.
From BBC ● Jul. 5, 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
Every time we'd restock some cookies or some dishwashing liquid, I would double-check to make sure it was still there, that my sweet silver babies were still safe.
From "Ghost" by Jason Reynolds
Then he double-checks my claim, asking: “The court hadn’t said it in Students for Fair Admissions?”
From The Wall Street Journal ● Aug. 7, 2026
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
And someone on a hydraulic lift double-checks each hanging fixture.
From Los Angeles Times ● Nov. 8, 2024
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
She relieves herself in the sixth-floor toilet and checks her instinct to flush, knowing the toilet will not refill, and double-checks the air to make sure it does not feel warm before continuing.
From "All the Light We Cannot See" by Anthony Doerr
They double-checked that both of their names were on all accounts.
From The Wall Street Journal ● Feb. 28, 2026
Afterward, he double-checked the figures against Bloomberg data and found they were largely consistent.
From MarketWatch ● Dec. 5, 2025
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
The rosy saxifrage is listed as extinct but Robbie, a skilled climber, still double-checked.
From BBC ● May 24, 2024
“I double-checked everything,” Brian said, keeping his voice even.
From "The Chocolate War" by Robert Cormier
“Just double-checking my directions back into town,” I said.
From Slate ● Jun. 19, 2025
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
They recommend double-checking ingredients or working with a doctor or healthcare professional to choose the prenatal supplement.
From Science Daily ● Nov. 21, 2024
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
“No, I suppose not,” she replies, double-checking her map.
From "A Mango-Shaped Space" by Wendy Mass
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.
