honk vs emit

honk is a noun but emit is not a noun.

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

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

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

honk (noun)	emit (noun)
the cry of a goose (or any sound resembling this)

honk (verb)	emit (verb)
eject the contents of the stomach through the mouth	expel (gases or odors)
cry like a goose	express audibly; utter sounds (not necessarily words)
use the horn of a car	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
make a strident noise