grind
 grind (grīnd)v. ground, (ground) grind·ing, grindsv. tr.
1.
a. To crush, pulverize, or reduce to powder by friction, especially by rubbing between two hard surfaces:
grind wheat into flour.
b. To shape, sharpen, or refine with friction:
grind a lens.
2. To rub (two surfaces) together harshly; gnash:
grind the teeth.
3. To bear down on harshly; crush.
4. To oppress or weaken gradually: “Laws grind the poor, and rich men rule the law” (Oliver Goldsmith).
5.
a. To operate by turning a crank:
ground a hurdy-gurdy.
b. To produce or process by turning a crank:
grinding a pound of beef.
6. To produce mechanically or without inspiration:
The factory grinds out a uniform product.
7. To instill or teach by persistent repetition:
ground the truth into their heads.v. intr.
1. To perform the operation of grinding something.
2. To become crushed, pulverized, or powdered by friction.
3. To move with noisy friction; grate:
a train grinding along rusty rails.
4. Informal. To devote oneself to study or work:
grinding for a test; grinding away at housework.
5. Slang. To rotate the pelvis erotically, as in the manner of a stripteaser.n.
1. The act of grinding.
2. A crunching or grinding noise.
3. A specific grade or degree of pulverization, as of coffee beans:
drip grind.
4. Informal. A laborious task, routine, or study:
the daily grind.
5. Informal. A student who works or studies excessively.
6. Slang. An erotic rotation of the pelvis. [Middle English grinden, from Old English grindan. See ghrendh- in Indo-European Roots.] grindʹing·ly adv.
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