payback
1. [ noun ] (business) financial return or reward (especially returns equal to the initial investment)
Related terms: return
2. [ noun ] the act of taking revenge (harming someone in retaliation for something harmful that they have done) especially in the next life
Synonyms: vengeance retribution
Examples:

"For vengeance I would do nothing. This nation is too great to look for mere revenge"--James Garfield

Related terms: retaliation pay_back
Similar spelling:   pay_back
  papacy