Chou Collection, Middle Volume Radical: Earth (tǔ) Entry: yi Kangxi strokes: 7 Page 224, Entry 28 Guangyun (Broad Rhymes), Jiyun (Collected Rhymes), and Yunhui (Collection of Rhymes) state it is pronounced yi. According to the Shuowen (Explaining Graphs and Analyzing Characters), it refers to the window of a pottery stove. Additionally, according to the Guangyun (Broad Rhymes), it is pronounced tou; the meaning is the same. According to the Liushugu (Foundations of the Six Writings), it is written as a variant form (yi).