pay off
US /peɪ ˈɔf/
UK /peɪ ˈɔf/

1.
to yield good results; succeed
:
•
All her hard work finally paid off.
•
The investment didn't pay off as expected.
2.
3.
to bribe someone
:
•
The criminal tried to pay off the witness.
•
They were accused of trying to pay off officials.