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.
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
Others say the study could have overestimated the performance of the test because not all women had a biopsy - a more detailed test - to double check the result.
From BBC • Feb. 4, 2026
The third species of check is named the double check, where the King is attacked both by the Piece moved and the one discovered.
From The Blue Book of Chess Teaching the Rudiments of the Game, and Giving an Analysis of All the Recognized Openings by Staunton, Howard
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.
