grain

noun [C] (SMALL PIECE/AMOUNT)

/ɡreɪn/

Definition

› a very small piece of a hard substance, or a small amount of something: grains of sand There was a grain of truth in what she said. You haven’t got a grain of sense.

(Definition of grain noun (SMALL PIECE/AMOUNT) from the Cambridge Academic Content Dictionary © Cambridge University Press)

to express disagreement or refuse to do something

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