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English definition of “grind”

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grind

verb [T] uk   /ɡraɪnd/ (ground, ground) us  

grind verb [T] (MAKE SMALLER)

to make something into small pieces or a powder by pressing between hard surfaces: to grind coffee Shall I grind a little black pepper over your pizza? They grind the grain into flour (= make flour by crushing grain) between two large stones.

grind verb [T] (RUB)

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
grind your teeth to make a noise by rubbing your teeth together: She grinds her teeth in her sleep.

grind

noun [S] uk   /ɡraɪnd/ informal us  
a difficult or boring activity that needs a lot of effort: Having to type up my handwritten work was a real grind. The daily grind of taking care of three children was wearing her down.
(Definition of grind from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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