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 Many scientists and scholars redoubled their efforts to find evidence of the truth of the Bible. Joan Acocella, The New Yorker, "How to Read “Gilgamesh”," 7 Oct. 2019 Republicans on the Sunday morning news shows also redoubled their efforts to discredit the unidentified whistleblower and sought to keep the focus on the Bidens. al, "Stephen Miller: Trump is the real ‘whistleblower’," 30 Sep. 2019 In the wake of the election of Donald Trump, who’s questioned climate science and reversed a long list of federal programs designed to cut emissions, Brown redoubled his global efforts. Casey Tolan, The Mercury News, "Jerry Brown partners with China to fight climate change," 23 Sep. 2019 Diplomats redoubled their pressure on officials in Islamabad, which would be loath to risk the embarrassment of an American military operation on Pakistani soil, to get the couple released. Missy Ryan, Washington Post, "‘No one just goes hiking in Afghanistan’: American woman gave birth as a Taliban hostage. Now she seeks to end her mystery.," 23 Aug. 2019 How Saudi Arabia will respond in other ways — such as redoubling its military campaign against the Houthis in Yemen — is yet to be seen. Tim Lister, CNN, "Attack on Saudi oil facility a game-changer in Gulf confrontation," 15 Sep. 2019 To allay fears of permanent Democratic dominance, Republicans should reject Trumpism and redouble their efforts to court more nonwhite voters — something Reagan strongly believed was possible. Noah Smith, Twin Cities, "Noah Smith: Ronald Reagan, the diversity president," 8 Sep. 2019 Memon said the government has replaced anti-polio officials in poor-performing districts and redoubled efforts to win over tribal and religious leaders, some of whom have denounced vaccinations as a Western plot to sterilize Muslims. Shashank Bengali, Los Angeles Times, "Polio was nearly extinct. Then the anti-vaxx movement reached Pakistan," 5 Sep. 2019 Having a dedicated space to research the collection as well as the funds for more Matisse exhibitions, publications, and programs will redouble the BMA’s international reputation. Mary Carole Mccauley,, "With $5 million gift and new center, Baltimore Museum of Art aims to cement its name as world’s Matisse HQ," 25 July 2019

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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Statistics for redouble

Last Updated

13 Nov 2019

Time Traveler for redouble

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

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More Definitions for redouble


How to pronounce redouble (audio)

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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Comments on redouble

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strength of mind

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