pin

A needle without an eye (usually) made of drawn-out steel wire with one end sharpened and the other flattened or rounded into a head, used for fastening.

A small nail with a head and a sharp point.

A cylinder often of wood or metal used to fasten or as a bearing between two parts.

(wrestling, professional wrestling) The victory condition of holding the opponent's shoulders on the wrestling mat for a prescribed period of time.

A slender object specially designed for use in a specific game or sport, such as skittles or bowling.

(informal, in the plural) A leg.

(electricity) Any of the individual connecting elements of a multipole electrical connector.

A piece of jewellery that is attached to clothing with a pin.

(US) A simple accessory that can be attached to clothing with a pin or fastener, often round and bearing a design, logo or message, and used for decoration, identification or to show political affiliation, etc.

(chess) Either a scenario in which moving a lesser piece to escape from attack would expose a more valuable piece to being taken instead, or one where moving a piece is impossible as it would place the king in check.

(golf) The flagstick: the flag-bearing pole which marks the location of a hole

(curling) The spot at the exact centre of the house (the target area)

(archery) The spot at the exact centre of the target, originally a literal pin that fastened the target in place.

(obsolete) A mood, a state of being.

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

(medicine, obsolete) Caligo.

A thing of small value; a trifle.

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

(engineering) A short shaft, sometimes forming a bolt, a part of which serves as a journal.

The tenon of a dovetail joint.

(UK, brewing) A size of brewery cask, equal to half a firkin, or eighth of a barrel.

(informal) A pinball machine.

(locksmithing) A small cylindrical object which blocks the rotation of a pin-tumbler lock when the incorrect key is inserted.