Want this question answered?
Your uncle/aunt's son/daughter is an adult and you are still small, your uncle/aunt's daughter had a child, and that child will call you uncle. Uncles/aunts are your dad/mom's siblings.
your second cousin- in law or by her name lol
You daughter's husband's mother is your daughter's mother-in-law. The English language has no term for a relationship between you and your daughter's mother-in-law.
Your parent's brothers are your uncles and your parent's sisters are your aunts.
Your father's brother's son is your first cousin and your daughter's second cousin.
they are your cousin
Daughter.
Your aunts and uncles are the sisters and brothers of your parents. So they are "blood related." But you also call the husband of your mother's sister your uncle, and he is not "blood related." So aunts and uncles are not always really related to you.
Your uncle's grandchild would be your second cousin because his grown son or daughter would be your first cousin.
Cousin - In - Law
That would be yourself
I call them my uncles