REFINEMENT

Definition

1. noun a highly developed state of perfection. — synonyms: polish, culture, cultivation, finish
2. noun the result of improving something. — synonyms: elaboration
3. noun the process of removing impurities (as from oil or metals or sugar etc.). — synonyms: refining, purification
4. noun a subtle difference in meaning or opinion or attitude. — synonyms: nuance, nicety, shade, subtlety
5. noun the quality of excellence in thought and manners and taste. — synonyms: civilization, civilisation