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English definition of “weakness”

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weakness

noun uk   /ˈwiːk.nəs/ us  
B2 [U] the fact or state of not being strong or powerful: Any change of policy will be interpreted as a sign of weakness.B2 [C] a particular part or quality of someone or something that is not good or effective: There are definite weaknesses in their security arrangements. His main weakness as a manager is his inability to delegate. The later novels show none of the weaknesses of his earlier work.weakness for C2 a strong liking, usually for something that might have unpleasant or unwanted effects: My diet would be fine if only I didn't have this weakness for sweet things.
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(Definition of weakness from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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