Chen Collection, Upper Volume Radical: Sun (rì) Tan Kangxi strokes: 16 Page 500, Entry 13 Pronounced tan. According to the Tang Rhyme (Tangyun) and the Correct Rhymes (Zhengyun), and also the Collection of Rhymes (Jiyun), the sound is tan. According to the Explaining Graphs and Analyzing Characters (Shuowen), it refers to clouds spreading. According to the Jade Chapters (Yupian), tan-tan describes the appearance of black clouds. Also, according to the Jade Chapters (Yupian), it is the name used in Western countries to refer to the World-Honored One, Gautama.