/kwɑːˈdruːpl/
quad·ru·ple
BrE /kwɒˈdruːpl/
NAmE /kwɑːˈdruːpl/
[I, T]
~ (sth)
to become four times bigger; to make sth four times bigger
Sales have quadrupled in the last five years.
quad·ru·ple
[only before noun]
BrE /ˈkwɒdrʊpl/
NAmE /kwɑːˈdruːpl/
consisting of four parts, people or groups
a quadruple alliance
being four times as much or as many
a quadruple whisky
This year we produced quadruple the amount produced in 2013.