Chen Collection, Middle Volume Radical: Tree (mù) Entry: Shuang Kangxi stroke count: 22 Page 563, Entry 12 Sound Collection (Jiyun) states: pronounced shuang. Jade Chapters (Yupian) states: an oar, a wing of a boat. Categorized Dictionary (Leipian) states: a sail not yet spread. Sometimes written in a variant form, also commonly written in a variant form.