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English definition of “decide”

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decide

verb uk   /dɪˈsaɪd/ us  
A2 [I or T] to choose something, especially after thinking carefully about several possibilities: They have to decide by next Friday. It doesn't matter to me which one we have - you decide. [+ to infinitive] In the end, we decided to go to the theatre. [+ (that)] She decided (that) she would travel to India. [+ question word] I can't decide what to do. He can't decide whether to buy it. The committee decided in favour of (= made a formal judgment to choose) the cheapest option.C2 [T] to be the reason or situation that makes a particular result happen: The weather decided the outcome of the tennis match. Tim's mistake decided the game (= caused him to lose).
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(Definition of decide from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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