redouble
Americanverb (used with object)
-
redoubles,
present (3rd person singular)
-
redoubled,
past participle, past
-
redoubling
present participle
-
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).
-
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)
-
redoubles,
present (3rd person singular)
-
redoubled,
past participle, past
-
redoubling
present participle
-
to be doubled; become twice as great.
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to be echoed; resound.
-
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
-
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
-
bridge to double (an opponent's double)
noun
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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redoublesimple
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redoublessimple
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have redoubledperfect
-
has redoubledperfect
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am redoublingprogressive
-
are redoublingprogressive
-
is redoublingprogressive
-
have been redoublingperfect progressive
-
has been redoublingperfect progressive
Past
-
redoubledsimple
-
had redoubledperfect
-
was redoublingprogressive
-
were redoublingprogressive
-
had been redoublingperfect progressive
Future
Etymology
Origin of redouble
From the Middle French word redoubler, dating back to 1470–80. See re-, double
Explanation
To redouble something is to intensify it or make it bigger. After losing your initial run for school president, you might redouble your efforts the next year, with a bigger and better campaign. You'll almost always find the verb redouble accompanied by efforts, as when the local police force makes a pledge to redouble their efforts to cut down on people texting while driving. Or in an attempt to have a more diverse student body, a college might redouble its efforts to recruit applicants from different geographical areas. The root of redouble is the Middle French word redoubler, which combines re, "again," and doubler, "to double."
Vocabulary lists containing redouble
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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:
“We intend this to be part of a broader push to redouble efforts on our safety and alignment work.”
From MarketWatch ● Sep. 12, 2026
The decisive variable in the war remains military manpower, said Gady, including whether Putin will launch a large-scale mobilization in the coming months to redouble his ground campaign.
From The Wall Street Journal ● Aug. 27, 2026
In the longer term, the war will undoubtedly inspire countries that have to import energy to redouble efforts to wean themselves off fossil fuels.
From Barron's ● Apr. 14, 2026
The organization emailed its millions of followers on Sunday, urging them to redouble their planned menorah lightings.
From Los Angeles Times ● Dec. 14, 2025
Slightly crestfallen, Harry watched Phineas redouble his attempts to leave his frame.
From "Harry Potter and the Deathly Hallows" by J.K. Rowling
When the tankers flow through the Strait again, or if the UAE redoubles its attempts to build new pipelines, Emirati oil will flow like never before, unconstrained by Opec commitments.
From BBC ● Apr. 28, 2026
But it is also frustrating, and rereading redoubles that frustration.
From The Wall Street Journal ● Mar. 20, 2026
It could be, for example, that as a fund manager becomes aware that his trades are predictable, he redoubles his efforts to make his trades less predictable—which, in turn, should improve his performance.
From Barron's ● Mar. 3, 2026
But rather than a distraction, it redoubles the impact.
From Los Angeles Times ● Nov. 21, 2025
She dashes on more vehemently; and the steeper the rocks, and the greater the obstacles which oppose her course, the more she redoubles her speed.
From Spiritual Torrents by Jeanne Marie Bouvier de la Motte Guyon
Chinese automakers have redoubled efforts to expand overseas amid a slowing domestic market.
From The Wall Street Journal ● Apr. 9, 2026
But Canberra has redoubled efforts to diversify export markets for farmers since a 2020 dispute with Beijing saw agriculture exports blocked for several years, and last year's global imposition of US trade tariffs.
From Barron's ● Mar. 23, 2026
But these psychic wounds didn’t make Candy a cruel or nasty person; he simply absorbed the hurt and redoubled his efforts to be a genial performer.
From Los Angeles Times ● Oct. 8, 2025
This week, Sir Keir Starmer and his ministers redoubled their efforts to win over Labour MPs minded to join what could be the biggest rebellion yet against his government.
From BBC ● May 23, 2025
It seemed to me that our own rules redoubled plunder.
From "Between the World and Me" by Ta-Nehisi Coates
With her first cookbook “Homemade” set for its nationwide release in October, she is redoubling her efforts to separate her image from one that’s becoming less commercially appealing by the moment.
From Salon ● Sep. 12, 2026
McDonald’s and Wendy’s are redoubling their efforts and rethinking their promotional deals after experiencing disappointing results.
From The Wall Street Journal ● Aug. 17, 2026
Black clergy in the city, where Martin Luther King Jr. was assassinated in 1968, are redoubling their efforts to mobilize voters.
From Barron's ● Aug. 8, 2026
"A modest reduction is not cause for complacency – it is cause for redoubling efforts."
From BBC ● May 11, 2026
She reacted as she always did to adversity: by redoubling her efforts to force change on the reluctant city.
From "The Best of Enemies" by Osha Gray Davidson
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