From WordNet (r) 3.0 (2006):
lock
n 1: a fastener fitted to a door or drawer to keep it firmly
closed
2: a strand or cluster of hair [syn: lock, curl, ringlet,
whorl]
3: a mechanism that detonates the charge of a gun
4: enclosure consisting of a section of canal that can be closed
to control the water level; used to raise or lower vessels
that pass through it [syn: lock, lock chamber]
5: a restraint incorporated into the ignition switch to prevent
the use of a vehicle by persons who do not have the key [syn:
lock, ignition lock]
6: any wrestling hold in which some part of the opponent's body
is twisted or pressured
v 1: fasten with a lock; "lock the bike to the fence" [ant:
unlock]
2: keep engaged; "engaged the gears" [syn: engage, mesh,
lock, operate] [ant: disengage, withdraw]
3: become rigid or immoveable; "The therapist noticed that the
patient's knees tended to lock in this exercise" [ant:
unlock]
4: hold in a locking position; "He locked his hands around her
neck" [syn: lock, interlock, interlace]
5: become engaged or intermeshed with one another; "They were
locked in embrace" [syn: interlock, lock]
6: hold fast (in a certain state); "He was locked in a laughing
fit"
7: place in a place where something cannot be removed or someone
cannot escape; "The parents locked her daughter up for the
weekend"; "She locked her jewels in the safe" [syn: lock
in, lock away, lock, put away, shut up, shut away,
lock up]
8: pass by means through a lock in a waterway
9: build locks in order to facilitate the navigation of vessels