devastation vs ravaging

devastation and ravaging both are nouns.

Word	Noun	Adjective	Verb	Adverb
devastation	Yes	No	No	No
ravaging	Yes	Yes	No	No

As nouns, devastation and ravaging are synonyms defined as:

devastation and ravaging: plundering with excessive damage and destruction

devastation (noun)	ravaging (noun)
the termination of something by causing so much damage to it that it cannot be repaired or no longer exists	plundering with excessive damage and destruction
plundering with excessive damage and destruction
an event that results in total destruction
the feeling of being confounded or overwhelmed
the state of being decayed or destroyed

devastation (adjective)	ravaging (adjective)
	ruinously destructive and wasting