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English definition of “treble”

treble

verb [I or T]     /ˈtreb.l̩/
to increase three times in size or amount , or to make something do this: The price of property has almost trebled in the last ten years .Addition, subtraction, multiplication and divisionCalculations and calculating
(Definition of treble verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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