Gender Masculine Usage Korean Scripts 재성(Korean Hangul) 在成, 宰誠, etc.(Korean Hanja) Pronounced Pron. CHEH-SUNG Meaning & History From Sino-Korean 在 (jae) meaning "located at, exist" or 宰 (jae) meaning "kill, rule" combined with 成 (seong) meaning "completed, finished, succeeded" or 誠 (seong) meaning "sincere, honest, true". Other hanja combinations are possible.