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English definition of “open-and-shut”

open-and-shut

adjective uk   /ˌəʊ.pən.ənˈʃʌt/ us    /ˌoʊ-/
describes a problem or legal matter that is easy to prove or answer: Our lawyer thinks that we have an open-and-shut case.Easiness and simplicity
(Definition of open-and-shut from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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