Save Gender Masculine Usage Korean Scripts 선우(Korean Hangul) Pronounced Pron. SUN-OO [key] Other Forms FormsSun-woo Meaning & History From Sino-Korean 善 "good, virtuous, charitable, kind" or 宣 "declare, announce, proclaim" (seon), and 宇 "house; building", 友 "friend", or 羽 "feather, plume; wings" (u).