The children of your husband's siblings are your nieces or nephews. Their children are your great-nieces or great-nephews.
My brothers-in-law are my sisters' misters. I don't know which of the sisters' husbands he is.
Well, it depends how close you are to your husbands family. If you really want to know they are cousins-in-law.
No. An Uncle is the brother of either your Mother or Father. You're kids may call him 'uncle'
spain
Your brother would call your husbands sister by her first name. Or, "my (sibling's) sister in law.
you call her your daughter's husband's sister
your second nephew
you call your parents sisters aunty
The word sisters is a common plural noun. It needs no apostrophe.I loved my sisters.When sisters have possessions or belongings, it needs an apostrophe.I loved my sisters' letters and cards.My sisters' husbands were teachers.
None of the Cimorelli sisters have kids. Christina, the oldest, is only 23.
They are sisters in law.
Not really