blight vs devastation

blight and devastation both are nouns.

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

As nouns, devastation is a hypernym of blight; that is, devastation is a word with a broader meaning than blight:

Other hypernyms of blight include desolation.

blight (noun)	devastation (noun)
a state or condition being blighted	the termination of something by causing so much damage to it that it cannot be repaired or no longer exists
any plant disease resulting in withering without rotting	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

blight (verb)	devastation (verb)
cause to suffer a blight