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; cf. quadru-, duple

Explanation

When something is made up of four parts, you can describe it using the adjective quadruple, like a young gymnast's quadruple somersault. A common use of quadruple is in the medical term "quadruple bypass," which is a type of heart surgery that involves all four chambers of the patient's heart. You can also use quadruple to mean "four times as many," as when you order a quadruple-shot latte, with four shots of espresso. The Latin root word quadruplare, "make fourfold," comes from the suffix quadri-, or "four."

Example Sentences

It led to his retirement and an emergency quadruple bypass surgery, which he said he was "very lucky to survive".

From BBC • May 21, 2026

Two members of the Caballero family, Rubén Sr. and Rubén Jr., are also recognized for being the first to execute the quadruple somersault under the big top tent in 1985.

From Los Angeles Times • May 19, 2026

Some 360,000 Americans are in Facebook groups opposed to the facilities, roughly quadruple the number from December, figures from organizations fighting the AI build-out show.

From The Wall Street Journal • May 19, 2026

Therefore, he expects the total addressable market for server CPUs to quadruple to $137 billion by the end of the decade, with Arm at an advantage for power efficiency.

From MarketWatch • May 18, 2026

Uncle Carlos stood behind Aunt Tuti, his two sets of twins in a quadruple stroller.

From "The Epic Fail of Arturo Zamora" by Pablo Cartaya