payoff vs aftermath

payoff and aftermath both are nouns.

Word	Noun	Adjective	Verb	Adverb
payoff	Yes	No	No	No
aftermath	Yes	No	No	No

As nouns, aftermath is a hypernym of payoff; that is, aftermath is a word with a broader meaning than payoff:

Other hypernyms of payoff include consequence.

payoff (noun)	aftermath (noun)
a recompense for worthy acts or retribution for wrongdoing	the outcome of an event especially as relative to an individual
the final payment of a debt	the consequences of an event (especially a catastrophic event)
payment made to a person in a position of trust to corrupt his judgment
the income or profit arising from such transactions as the sale of land or other property