fizzle vs failure

fizzle and failure both are nouns.

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

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

fizzle (noun)	failure (noun)
a complete failure	an act that fails
a fricative sound (especially as an expression of disapproval)	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

fizzle (verb)	failure (verb)
end weakly