anger vs arouse

anger is a noun but arouse is not a noun.

Word	Noun	Adjective	Verb	Adverb
anger	Yes	No	Yes	No
arouse	No	No	Yes	No

As verbs, arouse is a hypernym of anger; that is, arouse is a word with a broader meaning than anger:

Other hypernyms of anger include elicit, enkindle, evoke, fire, kindle, provoke, raise.

anger (noun)	arouse (noun)
belligerence aroused by a real or supposed wrong (personified as one of the deadly sins)
a strong emotion; a feeling that is oriented toward some real or supposed grievance
the state of being angry

anger (verb)	arouse (verb)
make angry	cause to be alert and energetic
become angry	cause to become awake or conscious
	stop sleeping
	summon into action or bring into existence, often as if by magic
	call forth (emotions, feelings, and responses)
	to evoke sexual feelings
	to begin moving