door vs lock

door and lock both are nouns.

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

door (noun)	lock (noun)
a swinging or sliding barrier that will close the entrance to a room or building or vehicle	any wrestling hold in which some part of the opponent's body is twisted or pressured
the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close	a fastener fitted to a door or drawer to keep it firmly closed
a room that is entered via a door	a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key
a structure where people live or work (usually ordered along a street or road)	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
anything providing a means of access (or escape)	a mechanism that detonates the charge of a gun
	a strand or cluster of hair

door (verb)	lock (verb)
	become rigid or immoveable
	fasten with a lock
	keep engaged
	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