bark vs emit

bark is a noun but emit is not a noun.

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

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

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

bark (noun)	emit (noun)
a sailing ship with 3 (or more) masts
the sound made by a dog
a noise resembling the bark of a dog
tough protective covering of the woody stems and roots of trees and other woody plants

bark (verb)	emit (verb)
tan (a skin) with bark tannins	expel (gases or odors)
make barking sounds	express audibly; utter sounds (not necessarily words)
speak in an unfriendly tone	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
remove the bark of a tree
cover with bark