Save Gender Masculine Usage Korean Scripts 성환(Korean Hangul) Pronounced Pron. SUNG-HWAHN [key] Other Forms FormsSung-hwan Meaning & History From Sino-Korean 城 "castle; city, town", 星 "a star, planet; any point of light" or 成 "completed, finished, fixed" (seong) and 煥 "shining, brilliant, lustrous" (hwan).