Save Gender Masculine Usage Korean Scripts 오성(Korean Hangul) 五星, 五性, etc.(Korean Hanja) Pronounced Pron. /o.sʌŋ/ [key·simplify] Meaning & History From Sino-Korean 五 (o) meaning "five" combined with 星 (seong) meaning "star, planet" or 性 (seong) meaning "nature, character, sex". Other hanja combinations can form this name as well.
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