Zi Collection, Page Position: Upper, Radical: Bamboo (zhú), Page 1, Entry 01 Pronounced jiāng (flat tone). Also pronounced jiāng (flat tone). Pronounced shuāng. Meaning: a boat's sail. According to the "Nanyue Zhi" (Records of Southern Yue): In the South Sea, there is a type of tree called lutou, whose leaves resemble sugarcane and can be woven into sails, called lú. Also, according to the "Leipian" (Categorized Sections): Another theory refers to a wine strainer (a tool for filtering wine). Furthermore, according to the "Pianhai" (Ocean of Chapters): Lü is a state of a boat's sail not yet unfurled.