pay off (Verb) — Yield a profit or result. ex. "His efforts finally paid off"
pay off (Verb) — Eliminate by paying off (debts).
pay off (Verb) — Pay off (loans or promissory notes).
pay off (Verb) — Do or give something to somebody in return.
pay off (Verb) — (crime) pay someone with influence in order to receive a favour.
pay off (Verb) — Take vengeance on or get even.
pay off (Noun) — The final payment of a debt.
pay off (Noun) — Payment made to a person in a position of trust to corrupt his judgment.
pay off (Noun) — The income or profit arising from such transactions as the sale of land or other property. ex. "the average payoff was about 5%"
pay off (Noun) — A recompense for worthy acts or retribution for wrongdoing. ex. "the payoff of sin is death"