Definitions
1.nounThe thin, horny plate at the ends of fingers and toes on humans and some other animals."When I'm nervous I bite my nails."
2.nounThe basal thickened portion of the anterior wings of certain hemiptera.
3.nounThe terminal horny plate on the beak of ducks, and other allied birds.
4.nounThe claw of a bird or other animal.
5.nounA spike-shaped metal fastener used for joining wood or similar materials. The nail is generally driven through two or more layers of material by means of impacts from a hammer or other device. It is then held in place by friction.
6.nounA round pedestal on which merchants once carried out their business, such as the four nails outside The Exchange, Bristol.
7.nounAn archaic English unit of length equivalent to 1/20 of an ell or 1/16 of a yard (2 1/4 inches or 5.715 cm).