Your sister's son is your nephew. You are his uncle if you are a man, or his aunt if you are a woman.
Your sister's son is your nephew.
Uncle or Auntie.
Your sister's son is your nephew and you are his aunt (if you are female) or his uncle (if you are male.
Your sister's son is your nephew.
No, making your son wear his sisters pants is not a good punishment.
Cousin
He is your cousin
nephew
Our cousins are our mothers sisters son :)
A siblings son is always called a nephew
Your sister's daughter's son would be your grandnephew.
My sister's son is my nephew.
me (I am a man with a mother, but no brothers or sisters)