Noun
A warm coat, often an overcoat, fit to be worn in winter
(zoology) An animal's seasonal appearance in winter, notably thicker and/or otherwise camouflaged plumage or fur after (often autumnal) moulting
Regal ermine is made of the weasely stoat's winter coat
I like cool jackets - a nice fall or winter coat. You can get a lot of use out of it, and you'll wear it frequently, so it can really set the tone of your uniform for the season. John Legend