Xu Collection, Middle Volume Radical: Rain (yǔ) Character: Yin Kangxi Strokes: 19 Page 1377, Entry 48 Guangyun (Broad Rhymes), Jiyun (Collected Rhymes), Yunhui (Collection of Rhymes), and Zhengyun (Correct Rhymes) all record the pronunciation as yin. According to the Yupian (Jade Chapter), it means a prolonged rain. The Yunhui states it refers to rain lasting for more than ten days. Furthermore, in the Huainanzi (Huainanzi), it is stated: Yu washed and bathed in the prolonged rain. The Jiyun notes it is sometimes written in a variant form (zhan). It is commonly written as the variant form (yin).