Si Collection, Middle Volume. Radical: Fire (huǒ). Character: fū. Kangxi strokes: 9. Page 668, Entry 12. According to the Tang Dynasty Rhyme Dictionary (Tangyun), pronounced fú (rising tone). According to the Collected Rhymes (Jiyun), pronounced fú (rising tone). The pronunciation is the same as the word for Buddha (fó). The Explanation of Script and Explanation of Characters (Shuowen Jiezi) defines it as the appearance of flames. Also, according to the Collected Rhymes (Jiyun), pronounced bō (rising tone). The meaning is the same. Also, according to the Collected Rhymes (Jiyun), pronounced fú (falling tone). Also, pronounced fú (falling tone). It was originally written in a variant form. See the annotation for that entry for details. Also, according to the Collected Rhymes (Jiyun), pronounced fèi (falling tone). It describes the appearance of flames. It also refers to intense heat.