From WordNet (r) 3.0 (2006):
pin
n 1: a piece of jewelry that is pinned onto the wearer's garment
2: when a wrestler's shoulders are forced to the mat [syn:
fall, pin]
3: small markers inserted into a surface to mark scores or
define locations etc. [syn: peg, pin]
4: a number you choose and use to gain access to various
accounts [syn: personal identification number, PIN, PIN
number]
5: informal terms for the leg; "fever left him weak on his
sticks" [syn: pin, peg, stick]
6: axis consisting of a short shaft that supports something that
turns [syn: pivot, pin]
7: 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 [syn: pin, pin tumbler]
8: flagpole used to mark the position of the hole on a golf
green [syn: pin, flag]
9: a small slender (often pointed) piece of wood or metal used
to support or fasten or attach things
10: a holder attached to the gunwale of a boat that holds the
oar in place and acts as a fulcrum for rowing [syn: peg,
pin, thole, tholepin, rowlock, oarlock]
11: a club-shaped wooden object used in bowling; set up in
triangular groups of ten as the target [syn: bowling pin,
pin]
v 1: to hold fast or prevent from moving; "The child was pinned
under the fallen tree" [syn: trap, pin, immobilize,
immobilise]
2: attach or fasten with pins or as if with pins; "pin the
needle to the shirt". "pin the blame on the innocent man"
[ant: unpin]
3: pierce with a pin; "pin down the butterfly"
4: immobilize a piece