arouse vs ignite

arouse and ignite both are verbs.

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

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

arouse (verb)	ignite (verb)
cause to be alert and energetic	start or maintain a fire in
cause to become awake or conscious	arouse or excite feelings and passions
stop sleeping	cause to start burning; subject to fire or great heat
summon into action or bring into existence, often as if by magic	start to burn or burst into flames
call forth (emotions, feelings, and responses)
to evoke sexual feelings
to begin moving