There is no relationship, they share no common ancestor.
Your brother's daughter would be your niece.
Your brother's daughter is your niece..and you are her AUNT.
I guess you will be her uncle. Consider this case.. You have a brother and he has a daughter.. Your daughter will be a sister in law to your brother's daughter.
YES
The daughter of your brother is your niece.
Your brother would be your son's daughter's great uncle and your son's daughter would be your brothers great niece! Hopefully that makes sense :)
Brother's daughter in Kannada is ಅಕ್ಕನ ಮಗಳು (akkana magalu).
Your mother's brother is your uncle. Your uncle's daughter is your first cousin. Any child of your first cousin is your first cousin, once removed.
Your father's brother's son is your first cousin and your daughter's second cousin.
If you have no siblings but your daughter has an uncle, he is the brother of your spouse, your brother-in-law.
Your younger brother's wife's sister's daughter would be your son's cousin.
Great niece