restraint vs limitation

restraint and limitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
restraint	Yes	No	No	No
limitation	Yes	No	No	No

As nouns, limitation is a hypernym of restraint; that is, limitation is a word with a broader meaning than restraint:

Other hypernyms of restraint include restriction.

restraint (noun)	limitation (noun)
the act of controlling by restraining someone or something	an act of limiting or restricting (as by regulation)
a device that retards something's motion	the quality of being limited or restricted
discipline in personal and social activities	a principle that limits the extent of something
lack of ornamentation	the greatest amount of something that is possible or allowed
a rule or condition that limits freedom	(law) a time period after which suits cannot be brought
the state of being physically constrained