📖 WordNook

quadruple

adjective
  1. four times as great or many
    fourfold
  2. having four units or components
    “quadruple rhythm has four beats per measure”
    fourfold
noun
  1. a quantity that is four times as great as another
  2. a set of four similar things considered as a unit
    quartetquartettequadruplet
verb
  1. increase fourfold
    “My earnings quadrupled over a three year period.”