Quadruple

verb

/ˈkwɒdɹʊpl/

Word Frequency: 0.5

Definitions

1.verbTo multiply by four.

"Quadrupling four gives sixteen."

2.verbTo increase by a factor of four.

"Our profits quadrupled when we made the improvements."

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

4.adjectiveBeing four times as long, as big or as many of something.

"He's quite an athlete and can do quadruple jumps with ease."

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