quadruple

American  

[kwo-droo-puhl, -druhp-uhl, kwod-roo-puhl] / kwɒˈdru pəl, -ˈdrʌp əl, ˈkwɒd rʊ pəl /

adjective

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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noun

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.

verb (used with or without object)

quadrupled, quadrupling

1. to make or become four times as great.

   To serve 24 people, quadruple the recipe. My savings quadrupled in 20 years.

quadruple British  

/ kwɒˈdruːpəl, ˈkwɒdrʊpəl /

verb

1. to multiply by four or increase fourfold

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adjective

1. four times as much or as many; fourfold

2. consisting of four parts

noun

1. a quantity or number four times as great as another

Other Word Forms

• quadrupleness noun
• quadruply adverb

Etymology

Origin of quadruple

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

Example Sentences

The price of bitcoin roughly quadrupled that year.

From The Wall Street Journal

At another, the number more than quadrupled, from five last year to 27.

From BBC

Many growers are turning to the H-2A guest worker program – a legal pipeline for seasonal foreign labor that has quadrupled in size over the past decade.

From Salon

They were one Premier League win and the Champions League final away from a quadruple and doing what no team had done before in English football.

From BBC

China, which has the globe’s second-largest economy, has applied to join, a move that would quadruple the group’s total population to some 2 billion people.

From Seattle Times