Xu Collection, Upper Volume Radical: Metal (jīn) Character: di Kangxi Stroke Count: 19 Page 1319, Entry 01 Pronounced di. Shuowen Jiezi (Explaining Graphs and Analyzing Characters): The metal tip of an arrow. Shiming (Explanation of Names): Di means enemy. It can be used to defend against an enemy. Records of the Grand Historian (Shiji), Monthly Chronology of the Qin and Chu period: To melt down weapons and arrowheads. Commentary: Di is pronounced di. Sometimes written as a variant form (dī). Also, in the Biography of the Xiongnu: Made a whistling arrow. Commentary: Di is an arrow. Like a modern whistling arrow.