constraint vs lock

lock vs constraint

constraint and lock both are nouns.

constraint is not a verb while lock is a verb.

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

As nouns, lock is a hyponym of constraint; that is, lock is a word with a more specific, narrower meaning than constraint:

constraint: a device that retards something's motion
lock: a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key

Other hyponyms of constraint include air bag, airbrake, dive brake, arrester, arrester hook, band, brake, brake, brake pad, brake shoe, shoe, skid, catch, stop, chain, fastener, fastening, fixing, holdfast, gag, muzzle, lead, leash, tether, ignition lock, muzzle, life belt, safety belt, safety harness, drogue, sea anchor, bond, hamper, shackle, trammel, trammel.

constraint (noun)	lock (noun)
the act of constraining; the threat or use of force to control the thoughts or behavior of others	any wrestling hold in which some part of the opponent's body is twisted or pressured
a device that retards something's motion	a fastener fitted to a door or drawer to keep it firmly closed
the state of being physically constrained	a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key
	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 mechanism that detonates the charge of a gun
	a strand or cluster of hair

constraint (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

Difference between constraint and lock

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