devastate vs ruin

devastate is not a noun while ruin is a noun.

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

As verbs, ruin is a hypernym of devastate; that is, ruin is a word with a broader meaning than devastate:

Other hypernyms of devastate include destroy.

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

devastate (noun)	ruin (noun)
	destruction achieved by causing something to be wrecked or ruined
	a ruined building
	an event that results in destruction
	failure that results in a loss of position or reputation
	the process of becoming dilapidated
	an irrecoverable state of devastation and destruction

devastate (verb)	ruin (verb)
cause extensive destruction or ruin utterly	fall into ruin
overwhelm or overpower	destroy completely; damage irreparably
	reduce to ruins
	deprive of virginity
	reduce to bankruptcy
	destroy or cause to fail