failure vs ruination

failure and ruination both are nouns.

Word	Noun	Adjective	Verb	Adverb
failure	Yes	No	No	No
ruination	Yes	No	No	No

As nouns, ruination is a hyponym of failure; that is, ruination is a word with a more specific, narrower meaning than failure:

failure (noun)	ruination (noun)
an act that fails	destruction achieved by causing something to be wrecked or ruined
an unexpected omission	an event that results in destruction
an event that does not accomplish its intended purpose	failure that results in a loss of position or reputation
a person with a record of failing; someone who loses consistently	an irrecoverable state of devastation and destruction
lack of success
loss of ability to function normally
inability to discharge all your debts as they come due