1. n. An outer garment covering the upper torso and arms.Wp
2. n. A covering of material, such as paint.Wp
3. n. The fur or feathers covering an animal's skin.Wp
When the dog shed its coat, it left hair all over the furniture and the carpet.
4. n. (nautical) Canvas painted with thick tar and secured round a mast or bowsprit to prevent water running down the sides into the hold (now made of rubber or leather).
5. n. (obsolete) A petticoat.
6. n. The habit or vesture of an order of men, indicating the order or office; cloth.
7. n. A coat of arms.Wp
8. n. A coat card.
9. v. To cover with a coat of some material
One can buy coated frying pans, which are much easier to wash up than normal ones.