expiateto make amends for wrongdoing; to atone for a sin or errorHe spent years volunteering at the shelter, hoping to expiate the guilt he felt over his past actions.NoteHe spent years volunteering at the shelter, hoping to expiate the guilt he felt over his past actions.Elon.io is an online learning platformWe have an entire course teaching GRE Verbal — Essential Vocabulary grammar and vocabulary.Start learning GRE Verbal — Essential Vocabulary now