Definition of redouble in English:

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Pronunciation: /riːˈdʌb(ə)l/


1Make or become much greater, more intense, or more numerous: [with object]: we will redouble our efforts to reform agricultural policy [no object]: pressure to solve the problem has redoubled
More example sentences
  • Charles attempted to exploit the rift between army and Parliament and redoubled his efforts to persuade the Scots to assist him.
  • In Beijing Duan redoubled his efforts to strengthen his position.
  • At the same time, Europe and America must redouble their efforts to strengthen the imperfect but necessary system of international governance.
1.1 [no object] Bridge Double a bid already doubled by an opponent: by redoubling you are asking your partner to bid something
More example sentences
  • The games can be doubled and redoubled as in bridge.


A call that doubles a bid already doubled by an opponent: this is a textbook position in which to use the SOS redouble
More example sentences
  • The players now bid as in Contract Bridge (doubles and redoubles are allowed), until one player passes.
  • If someone then bids higher, any previous doubles and redoubles are cancelled.


Late Middle English: from French redoubler, from re- 'again' + doubler 'to double'. The noun dates from the early 20th century.

For editors and proofreaders

Line breaks: re|double

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