📖 WordNook

fourfold

adverb
  1. by a factor of four
    “the price of gasoline has increased fourfold over the past two years”
    four times
adjective
  1. four times as great or many
    “a fourfold increase in the dosage”
    quadruplefour-fold
  2. having four units or components
    quadruplefour-foldquadruplicatequadruplex