'pay off' definitions:

Definition of 'pay off'

(from WordNet)
verb
Yield a profit or result; "His efforts finally paid off"
verb
Eliminate by paying off (debts) [syn: liquidate, pay off]
verb
Pay off (loans or promissory notes) [syn: redeem, pay off]
verb
Do or give something to somebody in return; "Does she pay you for the work you are doing?" [syn: pay, pay off, make up, compensate]
verb
Pay someone with influence in order to receive a favor [syn: buy off, pay off]
verb
Take vengeance on or get even; "We'll get them!"; "That'll fix him good!"; "This time I got him" [syn: pay back, pay off, get, fix]

Synonyms of 'pay off'

From: Moby Thesaurus