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English definition of “flaw”

flaw

noun [C] uk   /flɔː/ us    /flɑː/
C1 a fault, mistake, or weakness, especially one that happens while something is being planned or made, or that causes something not to be perfect: I returned the material because it had a flaw in it. There's a fatal flaw in your reasoning. This report is full of flaws. a character flaw

flaw

verb [T] uk   /flɔː/ us    /flɑː/
to cause something to be not perfect: A tiny mark flawed the otherwise perfect silk shirt.
(Definition of flaw from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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