failure vs dead duck

failure and dead duck both are nouns.

Word	Noun	Adjective	Verb	Adverb
failure	Yes	No	No	No
dead duck	Yes	No	No	No

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

Other hyponyms of failure include bankruptcy, bank failure, crop failure.

failure (noun)	dead duck (noun)
an act that fails	something doomed to 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