GRIND
Grind, v. i.
1. To perform the operation of grinding something; to turn the millstones. Send thee Into the common prison, there to grind. Milton.
2. To become ground or pulverized by friction; as, this corn grinds well.
3. To become polished or sharpened by friction; as, glass grinds smooth; steel grinds to a sharp edge.
4. To move with much difficulty or friction; to grate.
5. To perform hard aud distasteful service; to drudge; to study hard, as for an examination. Farrar.
GRIND
Grind, n.
1. The act of reducing to powder, or of sharpening, by friction.
2. Any severe continuous work or occupation; esp., hard and uninteresting study. [Colloq.] T. Hughes.
3. A hard student; a dig. [College Slang]