Cousins are relatives. In patriarchal society, uncles' daughters are called cousins when they are older than themselves, while in matriarchal society, aunts' daughters are called cousins when they are older than themselves.

Cousins are also related to themselves, but this relationship is far greater than the mother's brother-sister relationship, so they can't be called relatives for the time being.

Relatives are Chinese words, and the basic meaning of this word is people who are related by blood and by marriage.

The original relatives refer to the relatives of mother and wife. Relatives used to refer to relatives who were relatively far away from their own families. They are not used as legal terms because of their vague meanings.

The concept of relatives is much broader than that of family members. Family members refer to relatives who have legal rights and obligations, such as grandparents, brothers and sisters.

In the laws of our country, they have mutual rights and obligations, so they are all family members. Judging whether these people are family members is not based on living together.

Relatives can be used to refer to close relatives in the pre-Qin period, such as parents, wives, sisters-in-law, uncles and brothers, sons and nephews, etc. The word "pro" has been recorded in the past historical classics, such as "filial piety when you enter, and youthfulness when you leave" in Mozi Unnamed Chapter. Sun Yirang said: "Relatives are good parents."