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English definition of “belt and braces”

belt and braces

UK informal
the use of two or more actions in order to be extra careful about something, although only one is really necessary: I wrote to them and phoned as well - belt and braces, I admit.Cautious and vigilantPaying attention and being careful
(Definition of belt and braces from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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