Thesaurus.com
Dictionary.com
Showing results for quadruple. Search instead for quadruply.
Definitions

quadruple

[kwo-droo-puhl, -druhp-uhl, kwod-roo-puhl] / kwɒˈdru pəl, -ˈdrʌp əl, ˈkwɒd rʊ pəl /