Great Aunt.
Our cousins are our mothers sisters son :)
Mothers sister is aunt and son is cousin so daughter wouldn't that be a niece
Your sister's son will call you his uncle, if you are a man, or his aunt, if you are a woman.
cousin
A mother's sister's son is her nephew. In other words, the son of your mother's sister (your aunt) is your cousin.
She is your third cousin.
You call him your nephew. (pronouced nes-few)
Your sister's son is your nephew. You are his aunt or uncle.
Mom
If your sister had a son, then he is your nephew.
In Hindi, you would call your mother's sister "mausi" or "masi".
Mothers sister is aunt and son is cousin so daughter wouldn't that be a niece