re·​dou·​ble | \ (ˌ)rē-ˈdə-bəl How to pronounce redouble (audio) \
redoubled; redoubling; redoubles

Definition of redouble

transitive verb

1 : to make twice as great in size or amount broadly : intensify, strengthen
2a obsolete : to echo back
b archaic : repeat

intransitive verb

1 : to become redoubled
2 archaic : resound
3 : to double an opponent's double in bridge

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Other Words from redouble

redouble noun

Examples of redouble in a Sentence

They redoubled their efforts to finish the work on time. Their efforts to finish the work redoubled as the deadline drew near.
Recent Examples on the Web Misinformation and vaccine hesitancy remain challenges, and experts say states will need to redouble their efforts to reach the target. Harmeet Kaur, CNN, 8 June 2021 The museum, which opens to the public May 26, plans to redouble efforts to diversify its collection and staff, according to the founding director. Melissa Gomez, Los Angeles Times, 18 May 2021 The state will also redouble efforts to reach seniors by contacting more than 70,000 Medicaid recipients over age 50 who have not been vaccinated, the governor said. Bryn Stole,, 21 Apr. 2021 Lastly, the government and public health professionals must immediately redouble their outreach efforts to counteract any increases in vaccine hesitancy. Zoë Mclaren, Wired, 16 Apr. 2021 The Queen, nonetheless, is just as likely to redouble her efforts, and to proceed with mournful dignity toward her own centenary. Anthony Lane, The New Yorker, 9 Apr. 2021 Theorists will now redouble their efforts to validate the consensus value and to develop computational methods that would enable them to calculate it from first principles, Petrov says. Adrian Cho, Science | AAAS, 7 Apr. 2021 His friends and former co-workers on Monday reiterated calls for his release, saying China, Canada and the United States should redouble efforts to resolve the issue. New York Times, 22 Mar. 2021 For these reasons, employers must redouble efforts to reach out and support their female employees. Garen Staglin, Forbes, 10 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'redouble.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of redouble

15th century, in the meaning defined at transitive sense 1

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Time Traveler for redouble

Time Traveler

The first known use of redouble was in the 15th century

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Statistics for redouble

Last Updated

10 Jun 2021

Cite this Entry

“Redouble.” Dictionary, Merriam-Webster, Accessed 13 Jun. 2021.

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More Definitions for redouble



English Language Learners Definition of redouble

: to greatly increase the size or amount of (something)


re·​dou·​ble | \ rē-ˈdə-bəl How to pronounce redouble (audio) \
redoubled; redoubling

Kids Definition of redouble

: to greatly increase the size or amount of They redoubled their efforts.


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