breathe vs emit

breathe and emit both are verbs.

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

As verbs, breathe and emit are synonyms defined as:

Other synonyms of breathe include pass off.

breathe (verb)	emit (verb)
draw air into, and expel out of, the lungs	expel (gases or odors)
expel (gases or odors)	express audibly; utter sounds (not necessarily words)
reach full flavor by absorbing air and being let to stand after having been uncorked	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
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