Zi Collection, Upper Volume, Page 14, Entry 05 In the "Guangyun" and "Jiyun," it is recorded that the pronunciation is zheng lie qie, pronounced zhi. The "Yupian" explains it as a knife sheath. In the "Boyya," it is stated that biè liè is a knife sheath. Furthermore, in the "Guangyun" and "Jiyun," it is recorded that the pronunciation is zhi lie qie, pronounced zhé. The meaning is the same. The "Jiyun" explains that it is interchangeable with 靼 (dá) and 通 (tōng).