Payoff and Swan song

Payoff noun - The amount of money left when expenses are subtracted from the total amount received.

Swan song and payoff are semantically related. In some cases you can use "Swan song" instead a noun "Payoff".

Swan song noun - A final performance or effort (especially before retirement).

Payoff and swan song are semantically related. Sometimes you can use "Payoff" instead a noun phrase "Swan song".