What is Redeem ?
Redeem is (verb) 1. to make something better than it seemed to be at first The playing by the orchestra was redeemed by the singing of the soprano and tenor. 2. to get back something which you have pledged in order to borrow money After we were paid I redeemed the ring from the pawnbroker. 3. to get in exchange You can redeem this gift coupon for a free lunch. 4. to sell something for a cash payment Bondholders with mature bonds must redeem them within three months. 5. to redeem a promise to do what you promised (formal.) We are still hoping that the government will redeem all its election promises. 6. to save from sin Christians believe that they will be redeemed by Jesus Christ.
source: Easier English, Student Dictionary Upper Intermediate Level