grind
grind / grīnd/ • v. (past ground / ground/ ) 1. [tr.] reduce (something) to small particles or powder by crushing it: grind some black pepper over the salad they grind up fish for fertilizer. ∎ [intr.] (of a mill or machine) work with a crushing action: the old mill was grinding again. ∎ sharpen, smooth, or produce (something) by crushing or by friction: power from a waterwheel was used to grind cutlery. ∎ operate (a mill or machine) by turning the handle: she was grinding a coffee mill.2. rub or cause to rub together gratingly: [intr.] tectonic plates that inexorably grind against each other | [tr.] he keeps me awake at night, grinding his teeth. ∎ [intr.] move noisily and laboriously, esp. against a countering force: the truck was grinding slowly up the hill.3. [intr.] inf. (of a dancer) rotate the hips: go-go girls grinding to blaring disco.• n. [in sing.] 1. a crushing or grating sound or motion: the crunch and grind of bulldozers | fig. the slow grind of the U.S. legal system. ∎ hard dull work: relief from the daily grind. ∎ inf. an excessively hard-working student. ∎ the size of ground particles: only the right grind gives you all the fine flavor.2. inf. a dancer's rotary movement of the hips: a bump and grind.PHRASES: grind to a halt (or come to a grinding halt) move more and more slowly and then stop.PHRASAL VERBS: grind away work or study hard.grind someone down wear someone down with continuous harsh or oppressive treatment: mundane everyday things which just grind people down.grind on continue for a long time in a wearying or tedious way: the rail talks grind on.grind something out produce something dull or tedious slowly and laboriously: I must grind out some more fiction.
grind
Hence grind sb. hard task XIX. grindstone XIII.