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

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

(US film) A low-budget film theater that shows primarily exploitation films

plural of grindhouse

plural of angle grinder

plural of bench grinder

The player of a barrel organ.

plural of organ grinder

Capable of being ground.