Advice to a sinner is a term that is often used in religious contexts, and it typically refers to the idea that someone who has sinned should seek forgiveness and make amends. The two crossword solutions for this term are ATONE (5 letters) and REPENT (6 letters). ATONE means to make up for a wrong or sin, while REPENT means to feel or express sincere regret or remorse for one's misdeeds. Together, these two words suggest that someone who has sinned should make an effort to make up for their wrongs and express genuine regret for their actions.