quadruple
Pronunciation:
/ˈkwɒdɹʊpl//kwɑˈdɹupəl/verb
Definitions
To multiply by four.
Example: Quadrupling four gives sixteen.
To increase by a factor of four.
Example: Our profits quadrupled when we made the improvements.
To provide four parallel running lines on a given stretch of railway.
adjective
Definitions
Being four times as long, as big or as many of something.
Example: He's quite an athlete and can do quadruple jumps with ease.