@MaitreJohn Q @catsaladCat 🐈🥗 (D.Burch) ⁠ If your first cousin is your parent's sibling's child, your parent's sibling's child's child is your first cousin once removed, and your second cousin is your parent's parent's sibling's child's child then your sibling should be your zeroth cousin and your siblings child your zeroth cousin once removed. It's all very logical. 😂

Actually, I think that might also make you your own zeroth cousin. So your own child would be your zeroth cousin once removed too.