Mao Collection, Lower Volume Radical: Tapping (pū) Kangxi Strokes: 12 Page 472, Entry 25 Broad Rhymes (Guangyun) and Collected Rhymes (Jiyun) state: pronounced yi (falling tone). Correct Rhymes (Zhengyun) states: pronounced yi (falling tone). According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it means to insult. The Collection of Ornaments (Peixi Ji) states: the character signifies to change. It is different from the character for floating (yang). Collected Rhymes (Jiyun) states: it is commonly used as a variant for the character for change (yi). The Sea of Characters (Pianhai) states: it means to explain. To be light is to be yi.