What's the difference between Meng Zhongji and Uncle Zhongji?

The difference between Bo and Meng is that:

Bo is the eldest son, and Meng is the eldest son of concubines.

Meng Zhongji is no different from Uncle Zhongji. "Bo" means "Meng", which means "Meng".

Shuowen Lineage: "Bo, Nagano." -Xu Shen in the Eastern Han Dynasty

Uncle, the older one. ? For example, after Zhou destroyed the Shang Dynasty, Boyi, who didn't eat, was married by her daughter and named.

Shuowen Lineage: "Meng, Nagano." -Xu Shen in the Eastern Han Dynasty

Meng, the elder.

Shuowen Family ":"Uncle, less. " ? -Xu Shen in the Eastern Han Dynasty

Uncle, young. Usually refers to the third place.

If you have seven or eight brothers, except the eldest, the second and the third, you can call them uncles. There are ten brothers and mothers in Historical Records of Guan Cai Family, among which Boyi, the eldest, is called "Bo", Wang Fa and Lao Si, the second, are regarded as honorifics, and the rest are from the third to Kang Shufeng, with the word "uncle" and Yao, the third, as "Ji".

Shuowen Ministry of the People: "Season, say less." -Xu Shen in the Eastern Han Dynasty

Ji, the name of a young man. Uncle Ji can be the youngest, but uncle Ji is younger than uncle Ji.

Extended data:

Example:

How many brothers does a family have? When naming them, the words "Bo (Meng), Zhong, Shu, Ji" were specially used to show the chronological order; This customary practice has a history of at least 2,000 years in China from the early years of the Western Zhou Dynasty.

"Bo" is the boss and "Zhong" is the second child. "Shuo Wen Ren Bu": "Bo, Nagano." "Clock, clock also." Uncle is the third, and season is the fourth. For example, during the Three Kingdoms period, Sun Jian's four sons: the eldest son Sun Ce; The second son Zhong; The third son Bi Shu; And four sons, Jizuo. This is a representative name according to Uncle Zhong Ji.

The word "equal" is used together, indicating that it is almost the same, so it is difficult to distinguish it. The idiom is "unequal, equal".

There are also some who use the word "Meng" instead of "Bo". Some people explain that "the eldest son is Bo and the eldest son is Meng", which means that in ancient times, if the eldest son was born to his wife, the word "Bo" was used, while if the eldest son was not born to his wife, the word "Meng" was used, but it seems that this is not the case.