1.  expiation(n = noun.possession) atonement, satisfaction - compensation for a wrong; "we were unable to get satisfaction from the local store"
is a kind of amends, damages, indemnification, indemnity, redress, restitution
Derived form verb expiate₁

2.  expiation(n = noun.act) atonement, propitiation - the act of atoning for sin or wrongdoing (especially appeasing a deity);
is a kind of redemption, salvation
has particulars: amends, reparation
Derived form verb expiate₁

1.  The act of making satisfaction or atonement for any crime or fault; the extinguishing of guilt by suffering or penalty. [1913 Webster]
"His liberality seemed to have something in it of self-abasement and expiation." [1913 Webster]

2.  The means by which reparation or atonement for crimes or sins is made; an expiatory sacrifice or offering; an atonement. [1913 Webster]
"Those shadowy expiations weak,
The blood of bulls and goats." [1913 Webster]

3.  An act by which the threats of prodigies were averted among the ancient heathen. Hayward. [1913 Webster]

N  atonement, reparation, compromise, composition, compensation, quittance, quits, expiation, redemption, reclamation, conciliation, propitiation, indemnification, redress, amends, apology, amende honorable, satisfaction, peace offering, sin offering, burnt offering, scapegoat, sacrifice, penance, fasting, maceration, sackcloth and ashes, white sheet, shrift, flagellation, lustration, purgation, purgatory.