Zi Collection, Upper Volume, Page 4, Entry 01 Pronounced yi (rising tone). In the "Guangyun" (Guangyun), it is pronounced "yi" with the fanqie of "yi" and "zhi". In the "Jiyun" (Jiyun), it is pronounced "yu" and "zhi", with the pronunciation being "yi". The "Guangyun" explains it as a small whirlwind. In the Xianyang region, there is such a wind, which is a small whirlwind that rotates close to the ground. The "Jiyun" explains it as a swirling airflow called 䬁.