restraint vs bridle

restraint and bridle both are nouns.

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

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

restraint (noun)	bridle (noun)
the act of controlling by restraining someone or something	the act of restraining power or action or limiting excess
a device that retards something's motion	headgear for a horse; includes a headstall and bit and reins to give the rider or driver control
discipline in personal and social activities
lack of ornamentation
a rule or condition that limits freedom
the state of being physically constrained

restraint (verb)	bridle (verb)
	respond to the reins, as of horses
	put a bridle on
	anger or take offense