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English definition of “grain”

grain

noun (SMALL PIECE)    /ɡreɪn/
C2 [C] a very small piece of a hard substance: grains of sandWords meaning small pieces and amounts C2 [S] a very small amount of a particular quality: There wasn't a grain of truth in anything she said. Anyone with a grain of common sense would have known what to do.Words meaning small pieces and amounts
(Definition of grain noun (SMALL PIECE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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