quadruple

verb

/ˈkwɒdrʊpl/

/kwɑːˈdruːpl/

[intransitive, transitive]

Verb Forms

present simple I / you / we / they quadruple	/ˈkwɒdrʊpl/ /kwɑːˈdruːpl/
he / she / it quadruples	/ˈkwɒdrʊplz/ /kwɑːˈdruːplz/
past simple quadrupled	/ˈkwɒdrʊpld/ /kwɑːˈdruːpld/
past participle quadrupled	/ˈkwɒdrʊpld/ /kwɑːˈdruːpld/
-ing form quadrupling	/ˈkwɒdrʊplɪŋ/ /kwɑːˈdruːplɪŋ/

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quadruple (something) to become four times bigger; to make something four times bigger（使）变为四倍
- Sales have quadrupled in the last five years.在过去五年中，销售额已增长至以前的四倍。
Topics Maths and measurementc2
Word Originlate Middle English (as a verb): via French from Latin quadruplus, from quadru- ‘four’ + -plus as in duplus (from duo ‘two’).

adjective

/ˈkwɒdrʊpl/

/kwɑːˈdruːpl/

[only before noun] determiner

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consisting of four parts, people or groups由四部分（或人、群体）构成的；四方面的
- a quadruple alliance四方联盟
being four times as much or as many四倍的
- a quadruple whisky一份四倍的威士忌
- This year we produced quadruple the amount produced in 2013.我们今年的产量是 2013 年的四倍。

Word Originlate Middle English (as a verb): via French from Latin quadruplus, from quadru- ‘four’ + -plus as in duplus (from duo ‘two’).