Grace can mean elegance, beauty, favor, mercy, or theology. Learn the different meanings, synonyms, examples, and idioms of grace from Dictionary.com. The meaning of GRACE is unmerited divine assistance given to humans for their regeneration or sanctification. How to use grace in a sentence. Synonym Discussion of Grace . What does grace mean ? Learn the meaning of grace and its definition . Understand what grace means, get detailed explanations, usage examples, and discover the meaning of grace in different contexts. GRACE definition : 1. the quality of moving in a smooth, relaxed, and attractive way: 2. the quality of being…. Learn more.