arouse vs fire up

arouse and fire up both are verbs.

Word	Noun	Adjective	Verb	Adverb
arouse	No	No	Yes	No
fire up	No	No	Yes	No

As verbs, fire up is a hyponym of arouse; that is, fire up is a word with a more specific, narrower meaning than arouse:

arouse (verb)	fire up (verb)
cause to be alert and energetic	begin to smoke
cause to become awake or conscious	arouse or excite feelings and passions
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