A small, slender, often pointed piece of metal used to fasten or attach things together. She used a pin to hold the fabric in place while sewing.
A badge or emblem worn as an ornament or a sign of membership or achievement. She proudly wore her club pin on her jacket.
A piece of metal or wood used in games such as bowling to be knocked down with a ball. He managed to knock down all the pins with his first throw.
A short, cylindrical piece of metal used as a fastener or a pivot in machinery. The hinge was secured with a metal pin.
A tactical situation in chess in which a piece cannot move without exposing a more valuable piece to capture. The grandmaster set up a deadly pin on his opponent's knight.
(informal, usually plural) A person's legs. She stretched her pins after the long flight.
An electrical contact or terminal on a plug, connector, or integrated circuit. Be careful not to bend the tiny pins on the CPU when installing it.