Nouns

(n)failurean act that fails“his failure to pass the test”
(n)failurean event that does not accomplish its intended purpose“the surprise party was a complete failure”
(n)failurelack of success“he felt that his entire life had been a failure”, “that year there was a crop failure”
(n)failure, loser, nonstarter, unsuccessful persona person with a record of failing; someone who loses consistently
(n)failurean unexpected omission“he resented my failure to return his call”, “the mechanic's failure to check the brakes”
(n)bankruptcy, failureinability to discharge all your debts as they come due“the company had to declare bankruptcy”, “fraudulent loans led to the failure of many banks”
(n)failureloss of ability to function normally“kidney failure”