gross out vs sicken

gross out and sicken both are verbs.

Word	Noun	Adjective	Verb	Adverb
gross out	No	No	Yes	No
sicken	No	No	Yes	No

As verbs, sicken is a hyponym of gross out; that is, sicken is a word with a more specific, narrower meaning than gross out:

Other hyponyms of gross out include nauseate, turn one's stomach.

gross out (verb)	sicken (verb)
lose one's nerve	get sick
fill with distaste	make sick or ill
	cause aversion in; offend the moral sense of
	upset and make nauseated