tsk vs emit

tsk and emit both are verbs.

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

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

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

tsk (verb)	emit (verb)
utter `tsk,' `tut,' or `tut-tut,' as in disapproval	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.