grind

to wear, smooth, or sharpen by abrasion or friction; whet.

to grind a lens.

to reduce to fine particles, as by pounding or crushing; bray, triturate, or pulverize.

Synonyms:

pound, comminute, powder, crush

to oppress, torment, or crush.

to grind minimum-wage employees.

Synonyms:

maltreat, persecute, afflict, plague

to rub harshly or gratingly; grate together; grit.

to grind one's teeth.

Synonyms:

abrade

to operate by turning a crank.

to grind a hand organ.

to produce by crushing or abrasion.

to grind flour.

Slang. to annoy; irritate; irk.

It really grinds me when he's late.

to perform the operation of reducing to fine particles.

to rub harshly; grate.

to be or become ground.

to be polished or sharpened by friction.

Informal. to work or study laboriously (often followed byaway ).

He was grinding away at his algebra.

Digital Technology. (in a video game) to perform a monotonous task repeatedly in order to advance a character to a higher level or rank.

You have to grind for hours before you can embark on the main story mission.

Slang. (in a dance) to rotate the hips in a suggestive manner.

the act of grinding.

a grinding sound.

a grade of particle fineness into which a substance is ground.

The coffee is available in various grinds for different coffee makers.

laborious, usually uninteresting work.

Copying all the footnotes was a grind.

Informal. an excessively diligent student.

Slang. a dance movement in which the hips are rotated in a suggestive or erotic manner.

to reduce or be reduced to small particles by pounding or abrading

to grind corn

to grind flour

(tr) to smooth, sharpen, or polish by friction or abrasion

to grind a knife

to scrape or grate together (two things, esp the teeth) with a harsh rasping sound or (of such objects) to be scraped together

to speak or say (something) in a rough voice

to hold down; oppress; tyrannize

(tr) to operate (a machine) by turning a handle

to produce in a routine or uninspired manner

he ground out his weekly article for the paper

to continue to play in a dull or insipid manner

the band only ground out old tunes all evening

to instil (facts, information, etc) by persistent effort

they ground into the recruits the need for vigilance

informal (intr) to study or work laboriously

(intr) to dance erotically by rotating the pelvis (esp in the phrase bump and grind )