Mao Collection, Lower Volume Radical: Tapping (pū) Kangxi Strokes: 12 Page 472, Entry 17 Pronounced duo. Dian-duo refers to knowing weight or heaviness. Another definition is that duo means food that comes without being requested. According to the Classified Compendium (Leipian), duo means food that is not served promptly. Also, pronounced zui. To sever or cut off.