Save Gender Masculine Usage Vietnamese Pronounced Pron. /twa̰ːn˧˩˧/, /twaːŋ˧˩˨/, /twaːŋ˨˩˦/ [key·simplify] Meaning & History From Sino-Vietnamese 瓚 (toản) meaning "impure jade" or referring to a type of ceremonial ladle made of jade.