[kwo-droo-puh l, -druhp-uh l, kwod-roo-puh l]


fourfold; consisting of four parts: a quadruple alliance.
four times as great.
Music. having four beats to a measure.


a number, amount, etc., four times as great as another.
something, as a series of acrobatic somersaults, made up of four clearly defined parts or stages: the first trapeze artist to perform a quadruple successfully.

verb (used with or without object), quad·ru·pled, quad·ru·pling.

to make or become four times as great: To serve 24 people, quadruple the recipe. My savings quadrupled in 20 years.

Nearby words

  1. quadrumane,
  2. quadrumanous,
  3. quadrumvir,
  4. quadrumvirate,
  5. quadruped,
  6. quadruple run,
  7. quadruple time,
  8. quadruplet,
  9. quadruplex,
  10. quadruplicate

Origin of quadruple

1325–75; Middle English < Latin quadruplus; cf. quadru-, duple

Related formsquad·ru·ple·ness, nounquad·ru·ply, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for quadruple

British Dictionary definitions for quadruple



to multiply by four or increase fourfold


four times as much or as many; fourfold
consisting of four parts


a quantity or number four times as great as another
Derived Formsquadruply, adverb

Word Origin for quadruple

C16: via Old French from Latin quadruplus, from quadru- (see quadri-) + -plus -fold

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for quadruple
Online Etymology Dictionary, © 2010 Douglas Harper