to redeem

to make amends for a sin, crime, or error through suffering or good deeds; the state of being redeemed

to perform meritorious service to atone for one's crimes or mistakes

to atone for one's crimes by meritorious acts

to kidnap for ransom

Yom Kippur or Day of Atonement (Jewish holiday)

the Yom Kippur War (October 1973) between Israel and its Arab neighbors

to give change (dialectal)

Redeemer

penance (to atone for a sin)

the price paid to redeem a person from captivity or for religious salvation

the act of saving or the state of being saved from harm, ruin, or religious sin