Wu Collection, Lower Volume Radical: Stone (shí) Kangxi strokes: 10 Page 828, Entry 37 Pronounced zhi (rising tone). Refers to a whetstone. Book of Documents (Shangshu), Tribute of Yu (Yugong): Jingzhou produces whetstones, fine-grained whetstones, arrowhead stones, and cinnabar. Commentary: A fine-grained whetstone is smoother than a standard whetstone. Classic of Mountains and Seas (Shanhaijing): Mount Yanzhi produces many whetstones. Also refers to being level and uniform. Book of Odes (Shijing), Lesser Odes (Xiaoya): The main road is as level as a whetstone. Also used to describe moral integrity. Book of Rites (Liji), Conduct of Scholars (Ruxing): To hone away rough edges and maintain uprightness. Also refers to diwo, a type of jade. Records of the Grand Historian (Shiji), Biography of Fan Ju: The region of Zhou produces diwo jade. Shuowen Jiezi: The original character is written as di. Sometimes also written as a variant form (di). Book of Documents (Shangshu), Tribute of Yu (Yugong): Mount Dizhu and Mount Xicheng. Commentary: Dizhu is the name of a mountain. It is located in the Yellow River. History of the Former Han (Qianhan shu), Biography of Mei Fu: Titles, salaries, and silk fabrics are the foundations pursued by all under heaven. Also, pronounced di (rising tone). The meaning is the same.