chirr vs emit

chirr and emit both are verbs.

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

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

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

chirr (verb)	emit (verb)
make a vibrant noise, of grasshoppers or cicadas	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.