triple - definition and synonyms

verb 

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/ˈtrɪp(ə)l/
present tense
I/you/we/theytriple
he/she/ittriples
present participletripling
past tensetripled
past participletripled
  1. [transitive] to increase something so that it is three times bigger than before

    He helped triple the value of the company.

    1. a.
      [intransitive] to increase by three times

      Sales tripled over a six-month period.