Zi Collection, Upper Volume, Page 15, Entry 04 Pronounced yi (entering tone) from "Guangyun" (Guangyun), and yi (entering tone) from "Jiyun" (Jiyun), "Yunhui" (Yunhui), and "Zhengyun" (Zhengyun), same pronunciation as "yi". "Yupian" (Yupian) records it as the name of a river. There is also "you yi", referring to the appearance of flowing water. Mu Hua's "Ode to the Sea" (Hai Fu) states "you yi lian yan".