bray vs emit

bray is a noun but emit is not a noun.

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

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

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

bray (noun)	emit (noun)
the cry of an ass

bray (verb)	emit (verb)
laugh loudly and harshly	expel (gases or odors)
reduce to small pieces or particles by pounding or abrading	express audibly; utter sounds (not necessarily words)
braying characteristic of donkeys	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.