oink vs emit

oink is a noun but emit is not a noun.

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

As verbs, emit is a hypernym of oink; that is, emit is a word with a broader meaning than oink:

Other hypernyms of oink include let loose, let out, utter.

oink (noun)	emit (noun)
the short low gruff noise of the kind made by hogs

oink (verb)	emit (verb)
utter a high-pitched cry, characteristic of pigs	expel (gases or odors)
	express audibly; utter sounds (not necessarily words)
	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.