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 During Tuesday's briefing, Beshear and Stack, the state's public health commissioner, also urged Kentuckians to redouble their efforts to prevent the spread of COVID-19. Billy Kobin, The Courier-Journal, "Cameron seeks to join suit filed by Florence Speedway, other businesses on COVID-19 rules," 1 July 2020 As a result, Cuomo said the state will redouble testing efforts in the city. Steve Bittenbender, Washington Examiner, "Cuomo: Law enforcement changes also needed at federal level," 8 June 2020 The Federal Reserve redoubled its effort to break that fall on Thursday with an ambitious plan to help companies and state and local governments gain access to funding. Patricia Cohen, New York Times, "‘Sudden Black Hole’ for the Economy With Millions More Unemployed," 9 Apr. 2020 The effect is redoubled, of course, by the rhyming tilt of their heads and the steady gaze both subjects return. Sebastian Smee, Washington Post, "Alice Neel’s ‘Two Girls in Spanish Harlem’ speaks from the artist’s heart," 31 Oct. 2019 The scientific community responded by redoubling efforts to establish stronger safeguards, encourage a more deliberate approach and deepen public conversation about responsible use. Jennifer Doudna, Time, "The Gene-Editing Revolution Is Already Here," 24 Oct. 2019 Maybe not a start-from-scratch job, like the job Tucker took at Colorado, but the foundation needs redoubling. Shawn Windsor, Detroit Free Press, "MSU football's Mel Tucker aims to restore the program Mark Dantonio built," 25 Feb. 2020 The reprieves clearly inspired the French, redoubling their belief that all was not lost. New York Times, "With an Abundance of Confidence, U.S. Gives an Advanced Class in Cool," 28 June 2019 The epidemic prompted health officials to redouble their efforts to find an effective vaccine to fight Ebola. Jay Bennett, Smithsonian Magazine, "The Top Ten Scientific Discoveries of the Decade," 6 May 2012

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

15 Jul 2020

Cite this Entry

“Redouble.” Dictionary, Merriam-Webster, Accessed 4 Aug. 2020.

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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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