Dictionary Check: lock

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