Guangyun states the pronunciation is pu; Jiyun and Yunhui state the pronunciation is pu, sounding like the character pang. Explaining the meaning, Analytical Dictionary of Chinese Characters (Shuowen Jiezi) defines it as pu (vast). The character structure is formed by two "que" components, using "fang" to indicate the sound. Note: The "er" here refers to the character "shang," which Analytical Dictionary of Chinese Characters (Shuowen Jiezi) classifies under the Upper radical; it has now been merged into this entry. In classical literature, it is traditionally written as the variant form pang. See the commentary on the character pang for a detailed explanation.