Save Gender Masculine Usage Lao Scripts ວັນໄຊ(Lao) Pronounced Pron. /wán.ˈsái/ [key·simplify] Other Forms FormsVanxai, Vansay, Vansai, Wanxay, Wanxai, Wansay, Wansai Meaning & History From Lao ວັນ (van) meaning "day" and ໄຊ (xay) meaning "victory".