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  • double check
    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.
  • double-check
    double-check
    verb (used with or without object)
    to check twice or again; recheck.
Synonyms

double check

1 American  

noun

Chess.
  1. 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.


double-check 2 American  
[duhb-uhl-chek] / ˈdʌb əlˈtʃɛk /

verb (used with or without object)

  • double-checks,
    present (3rd person singular)
  • double-checked,
    past participle,  past
  • double-checking
    present participle
  1. to check twice or again; recheck.


noun

  • double-checks
    plural
  1. a second examination or verification to assure accuracy, proper functioning, or the like.

double-check British  

verb

  1. to check twice or again; verify

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a second examination or verification

  2. 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Inflected Forms

Nouns

Participles

Conjugated Forms

Present

Past

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:

Definitely double check with your host to make sure the listing is up to date.

From The Wall Street Journal ● Jun. 26, 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

She added that some people who thought they were on a priority list were not, urging anyone who thinks they might be to double check.

From BBC ● Aug. 15, 2025

Then on Saturday we can repeat the operation, if necessary, thus getting a double check on the route.

From The Ranger Boys and the Border Smugglers by Claude A. Labelle

Likewise, double-check that percentages across all named beneficiaries add up to 100%, a common source of errors.

From MarketWatch ● Sep. 10, 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 month, I double-check her math to make sure every penny is accounted for.

From "Free Lunch" by Rex Ogle

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

That’s one of many double-checks in the system.

From Seattle Times ● Nov. 4, 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

I wondered if McGregor would have quibbled with his Obi-Wan’s patchy blond beard, but when I went back and double-checked the film, it is that scraggly.

From Los Angeles Times ● Sep. 8, 2026

Research shows that advisers find it more insulting to be double-checked by a chatbot than by a human rival.

From The Wall Street Journal ● Mar. 21, 2026

Afterward, he double-checked the figures against Bloomberg data and found they were largely consistent.

From MarketWatch ● Dec. 5, 2025

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

“I packed the rain clothes—thanks for that. I double-checked the gear last night.”

From "Caterpillar Summer" by Gillian McDunn

As a protector of Googoosh’s story, she recalls double-checking if the star really wanted to share some more revealing anecdotes.

From Los Angeles Times ● Dec. 2, 2025

“Just double-checking my directions back into town,” I said.

From Slate ● Jun. 19, 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

Marie is already tossing toppings from the translucent containers into the trash, counting receipts, and double-checking them on the computer.

From "Please Ignore Vera Dietz" by A.S. King

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