verb
-deems; -deemed; -deeming
[+ obj] to make (something that is bad, unpleasant, etc.) better or more acceptable
to exchange (something, such as a coupon or lottery ticket) for money, an award, etc.
to buy back (something, such as a stock or bond)
to pay back (money that is owed)
formal :to do what is required by (a pledge or a promise) :fulfill
Christianity :to save (people) from sin and evil
redeem yourself
to succeed or do something good after you have failed or done something bad