According to the industry encyclopedia, Dundun, used as a nickname, means honest, honest, safe and smooth. The original meaning of pier is mound, heavy stone, wood or building foundation. , is also a quantifier, used for clustered plants or several plants together, Dundun is also a surname. The piers are named Dunhui, Pangdun, Tiedun, Hongdun, Xiaodun, Erdun, Yidun and Zhendun.

Nicknames refer to the names people used in childhood. Generally, children are given names by relatives, and some places are called nicknames. Nicknames also express parents' love for their children.