Dictionary definition · lock
noun
- a fastener fitted to a door or drawer to keep it firmly closed
- a strand or cluster of hair
- a mechanism that detonates the charge of a gun
- 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
- a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key
- any wrestling hold in which some part of the opponent's body is twisted or pressured
verb
- fasten with a lock"lock the bike to the fence"
- keep engaged"engaged the gears"
- become rigid or immoveable"The therapist noticed that the patient's knees tended to lock in this exercise"
- hold in a locking position"He locked his hands around her neck"
- become engaged or intermeshed with one another"They were locked in embrace"
- hold fast (in a certain state)"He was locked in a laughing fit"
Source: Open English WordNet (CC BY 4.0).