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quadruple

C2
Fairly common

Pronunciation

UK

  • /kwɒˈdruː.pəl/not-comparableadjective

US

  • /kwɑˈdrupəl/

Meanings

Adjective

  1. four times as much or made up of four parts

Verb

  1. to make or become four times as much, as many, or as large

Noun

  1. a fourfold amount, result, or set of four

Beyond the definition

Imagine you're baking cookies! If the recipe calls for one cup of chocolate chips and you quadruple it, you're adding four times that amount—so four cups! That's the core idea behind "quadruple": to multiply something by four.

But it doesn't just apply to numbers. A quadruple alliance is made up of four parties. In figure skating, a quadruple jump is a very difficult jump in which an athlete completes four full rotations in the air. It's all about the power of four. Think of the prefix "quad" as meaning four, like in quadcopter (a drone with four rotors) or quadrilateral (a shape with four sides).

Examples

  1. 1

    Property prices

    House prices in the neighborhood have quadrupled over the last 20 years.

  2. 2

    Business output

    The company plans to quadruple its output by next summer.

  3. 3

    Ticket prices

    We ended up paying quadruple the normal price for last-minute tickets.

  4. 4

    Hotel booking

    They booked a quadruple room because they were traveling with two children.

    • Phrasea quadruple room

      a hotel room for four people

More examples
  1. 5

    Campaign growth

    By the end of the campaign, the number of volunteers had more than quadrupled.

See also

Similar

  • increase fourfold
  • multiply by four

Shades of meaning

Contrast

Used with (collocations)

  • quadruple in size
  • quadruple the amount
  • quadruple over time

Word family

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Forms and spellings

4 forms open this card.

Main spelling

  • quadruplenounverbadjectiveadverb

Forms

  • quadrupledpast tenseverbnounadjective
  • quadrupling-ing formverbnounadjective
  • quadruplesverbnounadjective