Your sister's mother is also your mother.
Your mother's brother is your uncle; and his brother is also your mother's brother, so he is also your uncle.
Your uncle's son is your first cousin.
Yes, she did. She had the relationship of a mother that a mother has with her son. As most mothers do.
Your mums brothers sisters roommate flatmates sisters brothers mothers son.
Your younger brother's wife's sister's daughter would be your son's cousin.
Our cousins are our mothers sisters son :)
cousin
me (I am a man with a mother, but no brothers or sisters)
Your mother's son is your brother or your half brother.
Your sister's son is your nephew.
First cousin, once removed.
the son would be the nephew
She is your third cousin.
He was an only child, and had no sibling, but did have a wife and son, Penelope and Telemachus.