pin, peg, stick -- (informal terms for the leg; "fever left him weak on his sticks")
pivot, pin -- (axis consisting of a short shaft that supports something that turns)
pin, pin tumbler -- (cylindrical tumblers consisting of two parts that are held in place by springs; when they are aligned with a key the bolt can be thrown)
pin, flag -- (flagpole used to mark the position of the hole on a golf green)
pin -- (a small slender (often pointed) piece of wood or metal used to support or fasten or attach things)
peg, pin, thole, tholepin, rowlock, oarlock -- (a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing)
bowling pin, pin -- (a club-shaped wooden object used in bowling; set up in triangular groups of ten as the target)
Overview of verb pin
The verb pin has 4 senses
trap, pin, immobilize, immobilise -- (to hold fast or prevent from moving; "The child was pinned under the fallen tree")
pin -- (attach or fasten with pins or as if with pins; "pin the needle to the shirt". "pin the blame on the innocent man")
pin -- (pierce with a pin; "pin down the butterfly")