Yin Collection, Middle Volume Radical: Mountain (shān) Entry: 15 Page 319, Entry 13 Broad Rhymes (Guangyun) and Collected Rhymes (Jiyun): Pronounced pei (falling tone). Explanation from Explaining Graphs and Analyzing Characters (Shuowen): The sound of a collapse. Collected Rhymes (Jiyun): The sound of falling rocks. Also, according to Jade Chapters (Yupian): Pronounced pi (rising tone). To destroy. Sometimes written in a variant form (pi). Also, according to Broad Rhymes (Guangyun): Pronounced fu (entering tone). Meaning is the same.