belch vs breathe

belch is a noun but breathe is not a noun.

Word	Noun	Adjective	Verb	Adverb
belch	Yes	No	Yes	No
breathe	No	No	Yes	No

As verbs, breathe is a hypernym of belch; that is, breathe is a word with a broader meaning than belch:

Other hypernyms of belch include emit, pass off.

belch (noun)	breathe (noun)
a reflex that expels gas noisily from the stomach through the mouth

belch (verb)	breathe (verb)
expel gas from the stomach	draw air into, and expel out of, the lungs
become active and spew forth lava and rocks	expel (gases or odors)
	reach full flavor by absorbing air and being let to stand after having been uncorked
	take a short break from one's activities in order to relax
	utter or tell
	manifest or evince
	impart as if by breathing
	be alive
	allow the passage of air through