quadruple
IPA: kwɑdrˈupʌɫ
noun
- Something that is four times the usual number, amount, size, etc.
- (skating) A figure-skating jump with four revolutions in the air.
verb
- (transitive) To multiply by four.
- (intransitive) To increase by a factor of four.
- (rail transport) To provide four parallel running lines on a given stretch of railway.
adjective
- Being four times as long, as big or as many of something.