03n.
A piece of wood, metal, etc., generally cylindrical, used for fastening separate articles together, or as a support by which one article ma…
1.
A piece of wood, metal, etc., generally cylindrical, used for fastening separate articles together, or as a support by which one article may be suspended from another; a peg; a bolt.
“With pins of adamant
And chains they made all fast.”
— Milton.
2.
Especially, a small, pointed and headed piece of brass or other wire (commonly tinned), largely used for fastening clothes, attaching papers, etc.
3.
Hence, a thing of small value; a trifle.
“He . . . did not care a pin for her.”
— Spectator.
4.
That which resembles a pin in its form or use(Mach.)
5.
One of a row of pegs in the side of an ancient drinking cup to mark how much each man should drink.
6.
The bull's eye, or center, of a target; hence, the center.[Obs.]
An ornament, as a brooch or badge, fastened to the clothing by a pin; as, a Masonic pin.
10.
The leg; as, to knock one off his pins.[Slang]
Phrases & compounds
Banking pin —
a pin against which a lever strikes, to limit its motion.
Pin drill —
a drill with a central pin or projection to enter a hole, for enlarging the hole, or for sinking a recess for the head of a bolt, etc.; a counterbore.