flame-out vs failure

flame-out and failure both are nouns.

Word	Noun	Adjective	Verb	Adverb
flame-out	Yes	No	No	No
failure	Yes	No	No	No

As nouns, failure is a hypernym of flame-out; that is, failure is a word with a broader meaning than flame-out:

flame-out (noun)	failure (noun)
the failure of a jet engine caused by an interruption of the fuel supply or by faulty combustion	an act that fails
a complete or conspicuous failure	an unexpected omission
	an event that does not accomplish its intended purpose
	a person with a record of failing; someone who loses consistently
	lack of success
	loss of ability to function normally
	inability to discharge all your debts as they come due