redouble
Americanverb (used with object)
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to double; make twice as great.
If you hope to win that client, you'll have to redouble your efforts to impress her.
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to echo or reecho.
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Bridge. to double the double of (an opponent).
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to go back over.
I redoubled my footsteps, trying to find my lost earring.
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Archaic. to repeat.
verb (used without object)
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to be doubled; become twice as great.
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to be echoed; resound.
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Bridge. to double the double of an opponent.
noun
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Bridge. the act of doubling one's opponent's double.
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Fencing. an attack in a line other than that of the previous attack, made after the failure of the opponent to follow their parry of the previous attack with a riposte.
verb
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to make or become much greater in intensity, number, etc
to redouble one's efforts
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to send back (sounds) or (of sounds) to be sent back; echo or re-echo
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bridge to double (an opponent's double)
noun
Other Word Forms
- redoubler noun
Etymology
Origin of redouble
From the Middle French word redoubler, dating back to 1470–80. See re-, double
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.
We need to redouble our efforts to keep those markets growing.
From Barron's • Jan. 26, 2026
He said Canadians must redouble their efforts to rebuild their economy, and drew on the country’s founding, when the British and French joined to choose “partnership over domination, and collaboration over division.”
From The Wall Street Journal • Jan. 23, 2026
Chief Executive Elliott Hill said Nike was “in the middle innings of our comeback,” as the company tries to redouble its focus on the needs of athletes and faces caution from budget-conscious consumers.
From MarketWatch • Dec. 18, 2025
Not only must we reject hate, we must redouble our efforts to combat hatred in all its forms.
From BBC • Sep. 21, 2025
Although Burnham recognized that much work lay ahead—that Olmsted had to redouble his efforts and Ferris needed to finish that damned wheel—the success of the exposition now seemed assured.
From "The Devil in the White City" by Erik Larson
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.
