A nail with a convex, faceted head.

A cast nail used for fastening vines to brick walls.

plural of nail house

A metal rod forced into the medullary cavity of a bone to treat a fracture.

a carpenter's tool used to hammer nail heads in to just below the surface of the wood, something that cannot be achieved with a hammer alone.

plural of nail punch

(colloquial, informal, slang) A weapon made by hammering nails into a wooden baseball bat, used for offense or defense.

plural of nail bat

(music) A musical instrument consisting of a wooden soundboard with metal nails attached, tuned to produce notes when played with a bow.

plural of nail violin