Pronounced pu (falling tone) according to "Guangyun" and "Jiyun", same pronunciation as "bu" (walking). Refers to a small boat. "Xiao Erya" records: a smaller type of small boat is called "po". "Yangzi Fangyan" records: a boat with a slender and shallow hull is called "du", and a boat with a short and deep hull is called "po". Also pronounced fang (flat tone) according to "Guangyun" and "Jiyun", same pronunciation as "fu" (to spread). Also pronounced peng (flat tone) according to "Jiyun", pronounced peng (falling tone) according to "Yunhui", and pronounced bu (falling tone) according to "Zhengyun", same pronunciation as "pu" (rush). The meanings are the same.