Anyone who has a great grandparent in common will be second cousins.
Another way to look at this is to note that the grandchildren of your great aunts and great uncles are your second cousins. Their children are your second cousins, once removed, and their parents are your first cousins once removed.
No, your mother's first cousin is your 'first cousin once removed'. First cousins are people who have the same grandparents. Second cousins are people who have the same great grandparents and are not first cousins, etc.
Your parent's first cousin's children are your second cousins. Your children and your second cousin's children are third cousins. Your children and your second cousin - or likewise you and the children of your second cousin - are second cousins, once removed. You and your parent's first cousin are first cousins, once removed.
Your first cousin's children are your first cousins, once removed. They are your children's second cousins. Your second cousin's children are your second cousins, once removed. They are your children's third cousins. And so forth.
Your daughter and your second cousin are second cousins once removed to each other.
Your first cousin's child would be your second cousin
Your second cousin's siblings are also your second cousins. The children of your second cousins are your second cousins, once removed.
You and your second cousin's children are second cousins, once removed. Your children and your second cousin's children are third cousins.
The children of your first cousins are your children's second cousins.The children of your second cousins are your children's third cousins,And so forth.
The children of your mother's first cousins are your second cousins. The children of your mother's second cousins are your third cousins. The children of your mother's third cousins are your fourth cousins. And so forth.
Your cousins son will be your second cousin xx
Your mother's first cousin is your first cousin, once removed. Your mother's second cousin is your second cousins, once removed. Your mother's third cousin is your third cousin, once removed. The potential relationships become more complex if your are talking about your mothers cousins once, twice or more removed.
The grandchild of your grandmother's first cousin is your third cousin. The grandchild of your grandmother's second cousin is your fourth cousin. The grandchild of your grandmother's third cousin is your fifth cousin.