Aunt or uncle and they nephew and niece, there's not other relationship term that can fit that relationship unless in a mother tongue.
Your children and your first cousin's children are second cousins.
If two people are first cousins, their children are second cousins. If two people are fifth cousins, their children are sixth cousins.
Third cousins once removed.
Your cousin's children are your second cousins
second cousins to his cousin's children, you'd be third cousins
Your children and your first cousin's children are second cousins.
You would be your childrens second cousins uncle or aunt, i think... :)
You and the children of your mother's first cousin's children are second cousins to each other. You have a great grandparent in common.The children of your mother's first cousins are your second cousins.The children of your mother's second cousins are your third cousins.
Your children and your first cousin are first cousins, once removed, to each other. Your children and your first cousin's children are second cousins to each other.
They are first cousins once removed. Your niece's children and your grandchildren will then be 2nd cousins.
Your children and your niece are first cousins to each other.
All the children of your aunt and uncle are your first cousins. You and your siblings are their first cousins, because you are the children of their aunt or uncle.Your first cousins children are your first cousins, once removed. Your children are first cousins, once removed, to your first cousins.Your children and your first cousin's children are second cousins to each other.