As nouns the difference between expiation and expiator
is that expiation is an act of atonement for a sin or wrongdoing while expiator is one who makes expiation or atonement.
expiation
English
Noun
(
en noun)
An act of atonement for a sin or wrongdoing.
(obsolete) The act of expiating or stripping off; plunder; pillage.
* Daniel
- This ravenous expiation of the state.
Synonyms
* atonement, propitiation
Related terms
* expiate