failure vs flop

failure and flop both are nouns.

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

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

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

Other hyponyms of failure include bankrupt, insolvent, flash in the pan, dud, washout, underdog.

failure (noun)	flop (noun)
an act that fails	the act of throwing yourself down; collapse; sink
an unexpected omission	a complete failure
an event that does not accomplish its intended purpose	someone who is unsuccessful
a person with a record of failing; someone who loses consistently	an arithmetic operation performed on floating-point numbers
lack of success
loss of ability to function normally
inability to discharge all your debts as they come due

failure (adverb)	flop (adverb)
	with a flopping sound
	completely