encumber vs bridle

encumber is not a noun while bridle is a noun.

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

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

encumber: restrict (someone or something) so as to make free movement difficult
bridle: put a bridle on

Other hyponyms of encumber include curb, clog.

encumber (noun)	bridle (noun)
	the act of restraining power or action or limiting excess
	headgear for a horse; includes a headstall and bit and reins to give the rider or driver control

encumber (verb)	bridle (verb)
restrict (someone or something) so as to make free movement difficult	respond to the reins, as of horses
	put a bridle on
	anger or take offense