If you have a niece or nephew, it is their daughter.
Standard English has no relationship called "great cousin" or "great great cousin."Your second cousin once removed is either:the great grandchild of a sibling of your grandparent, orthe grandchild of a sibling of your great grandparent.
auntie .
Well that would depend on if you were the biological grandfather. If so then the grandchild is also your grandchild. If the child was born to a child of your ex-wife and not fathered by you then they are no relation to you and you would call them by their name.
second cousin
Your uncle's grandchild would be your second cousin because his grown son or daughter would be your first cousin.
Yes, your second cousin is a cousin. A cousin is someone descended from the brother or sister of one of your ancestors. A first cousin is a child of your parent's sibling; a second cousin is a grandchild of your grandparent's sibling, and so forth.
A "toggaf"
If you hate your sibling, you can plan revenge though not recommended. What you should do is every time the call you a name is call them a name, too
yes cause they can call collect
Your brother's great grandchild is your great great nephew (if a boy) or great great niece (if a girl). You are their great great aunt.
Great aunt or great uncle depending on your gender.