(dated) Do not cry over spilt milk; what has already happened cannot be changed or repaired.

One who grinds something, such as the teeth. / (anatomy) A molar. / (slang) Any tooth. / A power tool with a spinning abrasive disc, used for grinding, smoothing, and shaping materials, usually metal.

A device for pulverizing or powdering coffee beans so they can be brewed as coffee. (Technically many of the machines tear the coffee beans).

plural of grinder

A usually hand-held grinder which uses a pair of internal gears to place the rotational axis of the grinding or cutting wheel perpendicular to that of the driving motor.

A grinder, typically with a pair of grinding wheels (one at each end of the motor shaft) that is designed to be permanently mounted on a workbench.

plural of coffee grinder

plural of angle grinder

plural of bench grinder

plural of organ grinder