nail

/neɪl/

noun

1
The 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
The basal thickened portion of the anterior wings of certain hemiptera.
3
The terminal horny plate on the beak of ducks, and other allied birds.
4
The claw of a bird or other animal.
5
A 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
A round pedestal on which merchants once carried out their business, such as the four nails outside The Exchange, Bristol.
7
An 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).

1
To fix (an object) to another object using a nail.
“He nailed the placard to the post.”
2
To drive a nail.
“He used the ax head for nailing.”
3
To stud or boss with nails, or as if with nails.
4
To catch.
5
To expose as a sham.
6
To accomplish (a task) completely and successfully.
“I really nailed that test.”
7
To hit (a target) effectively with some weapon.
8
Of a male, to engage in sexual intercourse with.
9
To spike, as a cannon.
10
To nail down: to make certain, or confirm.

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