pause vs breathe

pause is a noun but breathe is not a noun.

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

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

Other hyponyms of pause include catch one's breath, rest, take a breather, take five, take ten.

pause (noun)	breathe (noun)
temporary inactivity
a time interval during which there is a temporary cessation of something

pause (verb)	breathe (verb)
cease an action temporarily	draw air into, and expel out of, the lungs
interrupt temporarily an activity before continuing	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