Pronunciation: /ˈtrɪp(ə)l/
adjective
[attributive]-
consisting of or involving three items or people: a triple murder triple somersaults
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having three times the usual size, quality, or strength: a triple dark rum
predeterminer
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three times as much or as many: the copper energy cells had triple the efficiency of silicon cells
noun
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1a thing that is three times as large as usual or is made up of three standard units or items: two whiskies—triples, please
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2 (triples) a sporting contest in which each side has three players.
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3 (triples) Bell-ringing a system of change-ringing using seven bells, with three pairs changing places each time.
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4 Baseball a hit which enables the batter to reach third base.
verb
[no object]-
become three times as much or as many: grain prices were expected to triple
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[with object] multiply by three: the party more than tripled its share of the vote