修饰 literally combines 修 (to repair, improve, or cultivate) and 饰 (to adorn or decorate), together meaning 'to polish' or 'to refine' — especially language, writing, or appearance. It emphasizes deliberate improvement for clarity, elegance, or appropriateness, not just superficial decoration. In linguistic contexts, it refers to enhancing expression through word choice, syntax, or rhetorical devices; in personal contexts, it can mean grooming or styling oneself thoughtfully.

This verb is commonly used in formal or semi-formal settings: editing essays, preparing speeches, refining business emails, or describing careful self-presentation. It implies intentionality and skill — unlike casual synonyms like 搞 (to do) or 弄 (to mess with), 修饰 carries a positive, constructive connotation of thoughtful enhancement. It’s rarely used for physical objects (e.g., furniture or buildings); those typically take 修 or 装修 instead.