1.  payoff(n = noun.possession) final payment - the final payment of a debt;
is a kind of payment

2.  payoff(n = noun.possession) bribe - payment made to a person in a position of trust to corrupt his judgment;
is a kind of payment
has particulars: hush money, kickback, payola, soap

3.  payoff(n = noun.possession) issue, proceeds, return, take, takings, yield - the income or profit arising from such transactions as the sale of land or other property; "the average return was about 5%"
is a kind of income
has particulars: economic rent, rent, payback

4.  payoff(n = noun.event) reward, wages - a recompense for worthy acts or retribution for wrongdoing; "the wages of sin is death"; "virtue is its own reward"
is a kind of aftermath, consequence

1.  profit or gain from an action; -- used broadly; as, lots of effort with little payoff. [PJC]

2.  retribution, payback. [PJC]

3.  The act of giving or receiving money or other valuable consideration as a bribe. [PJC]

4.  The money or item given as a bribe. [PJC]

5.  same as compensation 2. [PJC]

6.  The climax or final result of an event or endeavor; the denoument of a narrative. [PJC]