Pronounced jǔ lǎng (falling tone) in Guangyun, jǔ lǎng (falling tone) in Jiyun and Yunhui, and jǔ àng (falling tone) in Zhengyun, with the same pronunciation as "guàn". Yu Pian explains it as a salt marsh. It also refers to a place name. The "History of the Northern Dynasties: Biography of Yang Yichen" records: Yichen led the Liaodong returning troops into Douzi'an to suppress rebels. It is sometimes mistakenly written as "guàn".