Payoff (noun)

1. A reward or advantage gained from doing something, especially after a lot of effort or time has been spent.
2. The final payment made to discharge a debt or obligation.
3. The profit or gain resulting from an investment or a business transaction.
4. The resolution or conclusion of a situation or story, especially in a dramatic or satisfying way.
5. A bribe or illegal payment made to gain an advantage or influence.

Origin:

Mid 19th century: from pay off, originally used in the sense "make a final payment", later "return or reward for investment or effort".

Examples:

1. The hard work and perseverance finally paid off when the young entrepreneur landed a major investment deal.
2. The payoff of the loan was a relief to the small business owner, who could finally move on to other things.
3. The payoff from the stock market investment was impressive, but the risks involved had been great.
4. The payoff of the mystery novel was a surprising twist that kept the reader engaged until the very end.
5. The payoff from the corrupt politician was a shocking revelation that sent shockwaves through the political establishment.