Anyone under the age of ten can be called brother or sister. ? Anyone over ten and under twenty can be called big brother or big sister. Twenty years old is a big generation, you can call me uncle and aunt.

As the old saying goes, my father's second brother is called "uncle", my father's sister-in-law is called "aunt" and my husband's brother is called "uncle". Polite address: a polite address for someone about his father's age.

Extended data:

Take Kong's Ci as an example:

Before the Ming Dynasty, the descendants of Kong had no fixed generation. In the early years of the Ming Dynasty, Zhu Yuanzhang, the founder of the Ming Dynasty, successively gave Kong Cross as the generation word, ranking it from the 56th generation. From then on, the relatives of Kong clan were not allowed to name themselves casually.

During the Chongzhen period of the Ming Dynasty, the feast duke Kong Yinzhi reported to the emperor in the sixty-fifth generation, and made ten generations of crosses. During the Tongzhi period of the Qing Dynasty, Kong Xiangke, the 75th generation duke of feasts, was approved by the emperor and lived under the same roof for ten generations. 19 19, Duke Kong Lingyi, the seventy-sixth generation feast, was put on file by the Ministry of Interior of the Republic of China for the twentieth generation.