Sense 1! Cf. mdung!. Adjective. Floating.bi dung Transitive verb. To make float. To-fly (kite).Cf. ana boh dung. Cf. boh dung.Sense 2Noun. Classifier: boh. Fontanel. Meaning 1 Floating. Meaning 2 bi đung: To make something float. Meaning 3 bi đung: To fly a kite. Meaning 4 Fontanel.