holler vs emit

holler is a noun but emit is not a noun.

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

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

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

holler (noun)	emit (noun)
a very loud utterance (like the sound of an animal)
a small valley between mountains

holler (verb)	emit (verb)
complain	expel (gases or odors)
utter a sudden loud cry	express audibly; utter sounds (not necessarily words)
shout out	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.