Zi Collection, Page Position: Upper, Radical: Water (shuǐ) Pronounced si (falling tone) — Tang Yun (Tangyun), Jiyun (Jiyun) Related to 㣇. Composed of two 㣇. — Shuowen (Shuowen) Also, the sound of 豕. — Yupian (Yupian) Also, the name of a rat. — Guangyun (Guangyun) Colloquially written as .