comeupance vs poetic justice

comeupance and poetic justice both are nouns.

Word	Noun	Adjective	Verb	Adverb
comeupance	Yes	No	No	No
poetic justice	Yes	No	No	No

As nouns, comeupance and poetic justice are synonyms defined as:

comeupance and poetic justice: an outcome (good or bad) that is well deserved and fitting

Other synonyms of comeupance include comeuppance, just deserts.

comeupance (noun)	poetic justice (noun)
an outcome (good or bad) that is well deserved and fitting	an outcome (good or bad) that is well deserved and fitting