restraint vs damper

restraint and damper both are nouns.

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

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

restraint (noun)	damper (noun)
the act of controlling by restraining someone or something	a depressing restraint
a device that retards something's motion	a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
discipline in personal and social activities	a movable iron plate that regulates the draft in a stove or chimney or furnace
lack of ornamentation
a rule or condition that limits freedom
the state of being physically constrained