EnglishMain Dictionary
quadruple
Universal Words
verb, adjective, determiner
verb to become four times bigger; to make sth four times bigger:
[V] Sales have quadrupled in the last five years. [also VN]
adjective [onlybeforenoun] determiner
1 consisting of four parts, people or groups:
a quadruple alliance
2 being four times as much or as many:
a quadruple whisky * This year we produced quadruple the amount produced in 1998.
