to peen.-to inclose; to confine; to pen; to pound.-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.-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.-that which resembles a pin in its form or use-a peg in musical instruments, for increasing or relaxing the tension of the strings.-a linchpin.-a rolling-pin.-a clothespin.-a short shaft, sometimes forming a bolt, a part of which serves as a journal.-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.-mood; humor.-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.-to fasten with, or as with, a pin; to join; as, to pin a garment; to pin boards together.