A plenary indulgence is a spiritual concept within Catholicism which refers to the full remission of the temporal punishment for sins that have already been forgiven. Although there are no direct synonyms for the term, there are various other related expressions that can be used in its place. These include "full indulgence," "complete forgiveness," "total absolution," or simply "the full pardon." The concept of an indulgence has a long history within the Catholic Church, and while it can be a complex theological subject, it ultimately represents a belief in the power of God's grace to offer forgiveness to all those who seek it.