Mill
Part of speech: verb
Definition: To grind or otherwise process in a mill or other machine. To shape, polish, dress or finish using a machine. To engrave one or more grooves or a pattern around the edge of (a cylindrical object such as a coin). (followed by around, about, etc.) To move about in an aimless fashion.
Part of speech: noun
Definition: A grinding apparatus for substances such as grains, seeds, etc. The building housing such a grinding apparatus. A manufacturing plant for paper, steel, textiles, etc. A building housing such a plant. An establishment that handles a certain type of situation routinely, such as a divorce mill, etc. An obsolete coin with value one-thousandth of a dollar, or one-tenth of a cent. One thousandth part, particularly in millage rates of property tax.
Example sentence: I think that if you grind your spices and keep them in small batches, you can use them in endless ways. The key thing is to have a spice mill or a coffee grinder, and to keep your spices cold and in tightly lidded boxes.
Grinder
Part of speech: noun
Definition: A power tool with a spinning abrasive disc, used for grinding, smoothing, and shaping materials, usually metal.A sandwich made on a long, cylindrical roll.
Example sentence: When any young director gets hired by a studio to do a $125 million film based on a preexisting piece of intellectual property, they're climbing into the meat grinder. And what you're coming out with on the other side is a generic, heavily studio-controlled pile of garbage that ends up on the side of Burger King wrappers.