Here are the possible solutions for your brother's daughter clue
Answer
Clue
Relevancy
nephew
Clue
Your sister's daughter's brother
Definition
the son of one's brother or sister
niece
Clue
Your brother's daughter, to you
Your brother's wife's daughter, to you
Your brother's daughter
Your twin brother's wife's daughter, to you
Brother's daughter
My daughter, to my brother
Definition
a daughter of one's brother of sister
reefermadness
Clue
1930s anti-marijuana propaganda film that ends with the principal of a school saying, "The next tragedy may be that of your daughter...or your son...or yours or yours..." [points at the camera] "... o