Pronounced shi (third tone) and zhu (first tone) in Guangyun, and yong (first tone) and zhu (first tone) in Jiyun, pronounced the same as shu (first tone). Yùpiān explains: 㸡, is a tool used to block water flow. Jiyun explains: 㸡, is a wooden board for blocking water flow. Another explanation refers to a wooden beam placed across water for crossing.