Chou Collection, Middle Volume Radical: Earth (tǔ) Entry: 堄 Kangxi strokes: 11 Page 232, Entry 02 Pronounced yi (falling tone). Pi-ni, refers to a crenelated parapet. Named because arrow slits are opened in it to observe below the city wall. Also written as pi-ni. Sometimes also written in a variant form (pi-ni). Also, pronounced ni (rising tone). The meaning is the same.