Quadruple - Definition

adj 1: having four units or components; "quadruple rhythm has
four beats per measure"; "quadruplex wire" [syn:
quadruple, quadruplicate, quadruplex, fourfold,
four-fold]
2: four times as great or many; "a fourfold increase in the
dosage" [syn: quadruple, fourfold, four-fold]
n 1: a set of four similar things considered as a unit [syn:
quartet, quartette, quadruplet, quadruple]
2: a quantity that is four times as great as another
v 1: increase fourfold; "His stock earning quadrupled"