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English definition of “grind”

grind

verb [T] (RUB)    /ɡraɪnd/ (ground, ground)
to rub something against a hard surface, in order to make it sharper or smoother: She has a set of chef's knives that she grinds every week. He ground down the sharp metal edges to make them smooth. The car engine was making a strange grinding noise. → See also grindstoneScratching and rubbing grind your teeth to make a noise by rubbing your teeth together: She grinds her teeth in her sleep.DentistryThe teethProblems with bones, joints and teethSqueezing and grinding
(Definition of grind verb (RUB) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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