A means of expiating.
Penance is self-punishment done to try to right a wrong, or the receipt of absolution from sins from a priest by fulfilling some requirement.
Reparation is defined as anything paid or done to make up for a wrongdoing, or the act of making up for a wrongdoing.
(Christianity) Salvation from sin through Jesus's sacrifice.
An explanation or excuse:
Something given or done in return for something else; repayment, remuneration, requital, or reward
Restitution is defined as reimbursement for a loss or injury, or restoring to a former condition or returning something to the former owner.
Satisfaction is getting what you wanted or desired or the payment of a debt.
Find another word for atonement. In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for atonement, like: amends, expiation, penance, reparation, redemption, apology, propitiation, recompense, redress, restitution and satisfaction.