#1
fourfold s. [
quadruple, four-fold] four times as great or many; "a fourfold increase in the dosage"
. wn #2
fourfold r. [
four times] by a factor of four; "the price of gasoline has increased fourfold over the past two years"
. wn #3
fourfold s. [
quadruple, quadruplicate, quadruplex, four-fold] having four units or components; "quadruple rhythm has four beats per measure"; "quadruplex wire"
. wn