appal vs revolt

appal is not a noun while revolt is a noun.

Word	Noun	Adjective	Verb	Adverb
appal	No	No	Yes	No
revolt	Yes	No	Yes	No

As verbs, revolt is a hypernym of appal; that is, revolt is a word with a broader meaning than appal:

Other hypernyms of appal include churn up, disgust, nauseate, sicken.

appal (noun)	revolt (noun)
	organized opposition to authority; a conflict in which one faction tries to wrest control from another

appal (verb)	revolt (verb)
strike with disgust or revulsion	cause aversion in; offend the moral sense of
fill with apprehension or alarm; cause to be unpleasantly surprised	fill with distaste
	make revolution