bribe vs payoff

bribe and payoff both are nouns.

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

As nouns, bribe and payoff are synonyms defined as:

bribe and payoff: payment made to a person in a position of trust to corrupt his judgment

bribe (noun)	payoff (noun)
payment made to a person in a position of trust to corrupt his judgment	a recompense for worthy acts or retribution for wrongdoing
	the final payment of a debt
	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

bribe (verb)	payoff (verb)
make illegal payments to in exchange for favors or influence