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.
It would be nice to think that the soaring oil and gas prices spurred by the Iran War would redouble global efforts to switch to renewable energy sources.
From Barron's • Mar. 19, 2026
Washington could then redouble its focus on the Indo-Pacific.
From The Wall Street Journal • Mar. 10, 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
He added that the threat level meant the poultry industry needed to "batten the hatches down, review their biosecurity and redouble their efforts".
From BBC • Nov. 6, 2025
Sensing this had made Cheesethief redouble his efforts.
From "Redwall" by Brian Jacques
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.
