Definitions

1. adverb

in four times the usual amount or degree; four times as much or as great

“The company quadrupled its profits over the past year.”

2. adverb

to or at a point four times as far as; four times as far or as long

“The new highway will quadruply the travel time between the cities.”

3. adverb

in a way that is four times as severe or intense

“The storm quadrupled in intensity overnight.”