ruin vs destruction

ruin and destruction both are nouns.

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

As nouns, destruction is a hypernym of ruin; that is, destruction is a word with a broader meaning than ruin:

ruin: destruction achieved by causing something to be wrecked or ruined
destruction: the termination of something by causing so much damage to it that it cannot be repaired or no longer exists

Other hypernyms of ruin include devastation.

As nouns, destruction is a hypernym of ruin; that is, destruction is a word with a broader meaning than ruin:

Other hypernyms of ruin include demolition, wipeout.

ruin (noun)	destruction (noun)
destruction achieved by causing something to be wrecked or ruined	the termination of something by causing so much damage to it that it cannot be repaired or no longer exists
a ruined building	an event that completely destroys something
an event that results in destruction	a final state
failure that results in a loss of position or reputation
the process of becoming dilapidated
an irrecoverable state of devastation and destruction

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