Source : WordNet®

redemption
     n 1: (Christianity) the act of delivering from sin or saving from
          evil [syn: {salvation}]
     2: repayment of the principal amount of a debt or security at
        or before maturity (as when a corporation repurchases its
        own stock)
     3: the act of purchasing back something previously sold [syn: {repurchase},
         {buyback}]