Pin (?), v. t. Metal Working

To peen.


© Webster 1913.

Pin (?), v. t. [Cf. Pen to confine, or Pinfold.]

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


© Webster 1913.

Pin, n. [OE. pinne, AS. pinn a pin, peg; cf. D. pin, G. pinne, Icel. pinni, W. pin, Gael. & Ir. pinne; all fr. L. pinna a pinnacle, pin, feather, perhaps orig. a different word from pinna feather. Cf. Fin of a fish, Pen a feather.]


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.


Especially, a small, pointed and headed piece of brass or other wire (commonly tinned), largely used for fastening clothes, attaching papers, etc.


Hence, a thing of small value; a trifle.

He . . . did not care a pin for her. Spectator.


That which resembles a pin in its form or use

; as: (a)

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

. (b)

A linchpin

. (c)

A rolling-pin

. (d)

A clothespin

. (e) Mach.

A short shaft, sometimes forming a bolt, a part of which serves as a journal

. See Illust. of Knuckle joint, under Knuckle. (f) Joinery

The tenon of a dovetail joint.


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


The bull's eye, or center, of a target; hence, the center.

[Obs.] "The very pin of his heart cleft."



Mood; humor.

[Obs.] "In merry pin."


8. Med.

Caligo. See Caligo.



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


The leg; as, to knock one off his pins.


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. <-- a toy with lightweight, usually brightly colored vanes, as of plastic, which revolve on a pin at the end of a stick, when acted on by a wind -->


© Webster 1913.

Pin (?), v. t. [imp. & p. p. Pinned (?); p. pr. & vb. n. Pinning.] [See Pin, n.]

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.



To pin one's faith upon, to depend upon; to trust to.


© Webster 1913.