Pin

Part of speech: noun (n.)

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; as:

5. A peg in musical instruments, for increasing or relaxing the tension of the strings.

6. A linchpin.

7. A rolling-pin.

8. A clothespin.

9. One of a row of pegs in the side of an ancient drinking cup to mark how much each man should drink.

10. The bull's eye, or center, of a target; hence, the center. [Obs.] "The very pin of his heart cleft." Shak.

11. Mood; humor. [Obs.] "In merry pin." Cowper.

12. Caligo. See Caligo. Shak.

13. An ornament, as a brooch or badge, fastened to the clothing by a pin; as, a Masonic pin.

14. The leg; as, to knock one off his pins. [Slang] Banking pin (Horol.), a pin against which a lever strikes, to limit its motion. -- Pin drill (Mech.), 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. -- Pin grass. (Bot.) See Alfilaria. -- Pin hole, a small hole made by a pin; hence, any very small aperture or perforation. -- Pin lock, a lock having a cylindrical bolt; a lock in which pins, arranged by the key, are used instead of tumblers. -- Pin money, an allowance of money, as that made by a husband to his wife, for private and personal expenditure. -- Pin rail (Naut.), a rail, usually within the bulwarks, to hold belaying pins. Sometimes applied to the fife rail. Called also pin rack. -- Pin wheel. (a) A contrate wheel in which the cogs are cylindrical pins. (b) (Fireworks) A small coil which revolves on a common pin and makes a wheel of yellow or colored fire.

Part of speech: verb (v.)

To peen.

Part of speech: verb (v.)

To inclose; to confine; to pen; to pound.

Part of speech: verb (v.)

To fasten with, or as with, a pin; to join; as, to pin a garment; to pin boards together. "Aa if she would pin her to her heart." Shak. To pin one's faith upon, to depend upon; to trust to.