lock vs gate

lock and gate both are nouns.

Word	Noun	Adjective	Verb	Adverb
lock	Yes	No	Yes	No
gate	Yes	No	Yes	No

lock (noun)	gate (noun)
any wrestling hold in which some part of the opponent's body is twisted or pressured	a movable barrier in a fence or wall
a fastener fitted to a door or drawer to keep it firmly closed	a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs
a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key	passageway (as in an air terminal) where passengers can embark or disembark
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	total admission receipts at a sports event
a mechanism that detonates the charge of a gun
a strand or cluster of hair

lock (verb)	gate (verb)
become rigid or immoveable	restrict (school boys') movement to the dormitory or campus as a means of punishment
fasten with a lock	control with a valve or other device that functions like a gate
keep engaged	supply with a gate
place in a place where something cannot be removed or someone cannot escape
become engaged or intermeshed with one another
hold in a locking position
build locks in order to facilitate the navigation of vessels
hold fast (in a certain state)
pass by means through a lock in a waterway