According to the principle of "wood and five elements", it is forbidden to name Meng with words that belong to the soil. Meng's name is forbidden to be named by words with the same vowel or tone, which is awkward to read and has no sense of rhythm; Meng's name is forbidden to be the same as that of his ancestors. If there is Meng in the name of the ancestor, it is forbidden for the younger generation to use Meng.
Meng is a first-class character (commonly used character) in the General Specification for Chinese Characters. This word can be found in the small seal script of Shuowen. The original meaning refers to the bud of a plant, and the extension can be used as a metaphor for things or signs that begin to happen.