arousal vs incitement

arousal and incitement both are nouns.

Word	Noun	Adjective	Verb	Adverb
arousal	Yes	No	No	No
incitement	Yes	No	No	No

As nouns, incitement is a hyponym of arousal; that is, incitement is a word with a more specific, narrower meaning than arousal:

arousal: the act of arousing
incitement: an act of urging on or spurring on or rousing to action or instigating

arousal (noun)	incitement (noun)
the act of arousing	an act of urging on or spurring on or rousing to action or instigating
mutual sexual fondling prior to sexual intercourse	the act of exhorting; an earnest attempt at persuasion
awakening from sleep	needed encouragement
a state of heightened physiological activity	something that incites or provokes; a means of arousing or stirring to action