devastate vs ravage

devastate is not a noun while ravage is a noun.

Word	Noun	Adjective	Verb	Adverb
devastate	No	No	Yes	No
ravage	Yes	No	Yes	No

As verbs, devastate and ravage are synonyms defined as:

Other synonyms of devastate include desolate, lay waste to, scourge, waste.

devastate (noun)	ravage (noun)
	(usually plural) a destructive action

devastate (verb)	ravage (verb)
cause extensive destruction or ruin utterly	make a pillaging or destructive raid on (a place), as in wartimes
overwhelm or overpower	cause extensive destruction or ruin utterly