How should I address my brother from the northeast?

In the northeast, people usually called older brothers or male relatives "elder brother" or "elder brother." "Brother" was usually used to refer to older brothers or unfamiliar older men. It could also be used to refer to good friends or men of the same generation. "Big brother" was usually used to refer to male relatives or friends who were older than themselves, and was not often used to address men of the same generation. The specific name to use depended on the local language habits, as well as the specific context and situation.

Northeasterners usually addressed uncles with the surname + uncle. For example, an uncle with the surname Li could call him Uncle Li. Similarly, Northeasterners usually addressed aunties with the surname + aunt. For example, an aunt with the surname Li could call her Aunty Li. This was how he addressed strangers. As for how relatives were addressed, they were usually addressed according to the family's ranking. For example, the second-ranked uncle could be addressed as second uncle, and the second-ranked aunt could be addressed as second aunt. Therefore, when Northeasterners addressed their uncles and aunts, they usually used the surname + uncle or surname + aunt, or they addressed them according to their family rankings.

The children of an uncle who addressed him as brother-in-law should be addressed as elder brother-in-law's cousin or elder brother-in-law's cousin.

The parents-in-law could be addressed as father-in-law and mother-in-law. In the written form of address, it was usually used as father-in-law or father-in-law, mother-in-law or mother-in-law. In their daily lives, they could address each other as father and mother along with their husbands. In addition, one could also directly fill in father-in-law and mother-in-law to indicate their relationship. As long as the relationship could be clearly stated, there was no mandatory rule in the law. If it was his wife's parents, he could just fill in as his father-in-law or mother-in-law.

Your uncle's daughter should be called a cousin.

My son can call my uncle "uncle".

Nephew or niece referred to the nephew or niece of his wife's family. According to the information provided, a nephew or niece was the nephew or niece of a man's wife. This title was used to differentiate between one's own nephew or niece.

In ancient times, when introducing one's family members, they would often address them as young master, young master, grandfather, father, mother, madam, and so on. These titles all contained the demeanor of a noble or young master. Young masters and young masters referred to the children of the nobles, while fathers referred to the elders in the family, while mothers and madams referred to the female elders. These titles all had strong cultural implications. When used, they needed to be chosen according to the specific situation.

Your son can call your uncle "son-in-law".

Uncle's father could be addressed as his biological grandfather or grandmother, or he could directly address them as grandfather or grandmother. However, in some areas, people would address the man according to his seniority. The father of the uncle would be called grandaunt. In general, one could decide how to address his uncle's father according to personal habits and regional customs.