Definition of "Lock" :
noun: any wrestling hold in which some part of the opponent's body is twisted or pressured
noun: a fastener fitted to a door or drawer to keep it firmly closed
noun: a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key
noun: 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
noun: a mechanism that detonates the charge of a gun
noun: a strand or cluster of hair
verb: become rigid or immoveable
"The therapist noticed that the patient's knees tended to lock in this exercise."
verb: place in a place where something cannot be removed or someone cannot escape
"The parents locked her daughter up for the weekend."
verb: fasten with a lock
"Lock the bike to the fence."
verb: keep engaged
verb: become engaged or intermeshed with one another
"They were locked in embrace."
verb: hold in a locking position
"He locked his hands around her neck."
verb: build locks in order to facilitate the navigation of vessels
verb: hold fast (in a certain state)
"He was locked in a laughing fit."
verb: pass by means through a lock in a waterway