• synonyms


[kwo-droo-puh l, -druhp-uh l, kwod-roo-puh l]
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  1. fourfold; consisting of four parts: a quadruple alliance.
  2. four times as great.
  3. Music. having four beats to a measure.
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  1. a number, amount, etc., four times as great as another.
  2. 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.
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verb (used with or without object), quad·ru·pled, quad·ru·pling.
  1. to make or become four times as great: To serve 24 people, quadruple the recipe. My savings quadrupled in 20 years.
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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. 2018

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British Dictionary definitions for quadruple


  1. to multiply by four or increase fourfold
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  1. four times as much or as many; fourfold
  2. consisting of four parts
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  1. a quantity or number four times as great as another
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Derived Formsquadruply, adverb

Word Origin

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


late 14c., from Middle French quadrupler, from Late Latin quadruplare "make fourfold, multiply by four," from Latin quadruplus (adj.) "quadruple, fourfold" (see quadruple (adj.)).

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1550s, from Middle French quadruple (13c.), from Latin quadruplus "fourfold," from quadri- "four" (see quadru-) + -plus "more" (see plus).

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Online Etymology Dictionary, © 2010 Douglas Harper