Definition of: fur

(fûr) noun
1. The soft, fine, hairy coat covering the skin of many mammals.
2. plural or collective sing. Skins of fur–bearing animals, as ermine, sable, beaver, etc.; also, apparel made of them.
3. Any fuzzy covering, as coating on the tongue.
4. A piece of wood nailed under a bent rafter to straighten it. [<v.]
—to make the fur fly To attack a person or thing vigorously; fight.
—v.t. furred, fur·ring
1. To cover, line, or trim with fur.
2. To clothe with fur.
3. To cover with a coating, as of scum.
4. To apply furring to, as for lathing. ♦ Homophone: fir. [<OF forrer line with fur <Gmc.]