Definitions:
a building equipped with machinery for grinding grain into flour.

a factory fitted with machinery for a particular manufacturing process

an engine.

a boxing match or a fist fight.

grind (something) in a mill

cut or shape (metal) with a rotating tool

(of people or animals) move around in a confused mass

thicken (wool or another animal fibre) by fulling it

a monetary unit used only in calculations, worth one thousandth of a dollar.