What is the meaning of Quadruple?

Being four times as long, as big or as many of something.

To multiply by four.

To increase by a factor of four.

To provide four parallel running lines on a given stretch of railway.

Something that is four times the usual number, amount, size, etc.

A figure-skating jump with four revolutions in the air.

quadruple

sixty-fourth note

something that is equal to four times something else

a move whose score is multiplied by four

the area on the board where such a move is possible

inflection of quadrupler:

  1. first/third-person singular present indicative/subjunctive
  2. second-person singular imperative

first/third-person singular present indicative/subjunctive

second-person singular imperative

feminine plural of quadruplo

vocative masculine singular of quadruplus

Source: wiktionary.org