"Gu" is my father's sister and "Aunt" is my mother's sister (in some areas, my father's sister is called "Aunt" and my mother's sister is called "Jing"). According to the traditional patriarchal clan system in China, paternal relatives are closer. The relationship between "uncle (husband) and uncle (husband)" originated from their parents, and there are also differences between them. For example, in real life, only my father's sister can be called "aunt", while people of my mother's generation can be called "aunt".

According to Xinhua dictionary, father: ① father, mother's husband; ② Address of male elders. Husband: a general term for adult men. According to China dictionary, Uncle: My aunt's husband. Uncle: ① menstruation's husband; (2) the husband's sister husband; (3) yue family called son-in-law. Uncle: My aunt's husband. Uncle: ① Aunt's husband; 2 wife's sister-in-law; (3) The woman calls her sister's husband; (4) Prostitutes' men call each other.

According to this, we can see that the meaning of "father" is relatively narrow, and it is only used to address male elders; "Husband" has a wider meaning and is used to address adult men. Therefore, "uncle", "uncle" and "uncle" have basically the same meaning when addressing "auntie" and "auntie's husband, which can be used universally. In written language, they prefer to use "father", which is also in line with the conventional language habits of China people, such as uncles, uncles and grandfathers. But there are also subtle differences, that is, when addressing people face to face, they tend to use "father"; When reporting, I tend to use "husband". Of course, there is nothing wrong with mixing.

Between peers, regardless of address or superiors, they can only be called "husband", "brother" and "brother" or by their first names, such as brother-in-law, brother-in-law and so on.

As for the Yue family's address to the son-in-law and the mutual address to the prostitute man, they are basically the remnants of ancient Chinese, and now they are rare.