You and the granddaughter of your grandmother's brothers, and sisters, are first cousins.
Second cousins once removed.
A great granddaughter and a granddaughter may be:mother and daughter,niece and aunt,first cousins once removed to each other, orsecond cousins once removed to each other.
Your maternal uncle is your mother's brother. His child is your first cousin. His granddaughter is your first cousin, once removed.
She is the great-granddaughter of poet Rabindranath Tagore.
Your granddaughter and your sister's granddaughter are second cousins.
Your brother's granddaughter to your granddaughter are second cousins.
Your granddaughter is your uncle's great great niece. He is her great great uncle, or some would say great grand uncle.
Your children and your husband's niece are first cousins. There is a difference of one generation between them. That makes them first cousins once removed.
Your children and your brothers children are first cousins. Your grand children and your brothers grand children are second cousins. There is a difference on one generation between the two. That would make them second cousins once removed.
Your granddaughter and your great nephew are second cousins.
Your brother's daughter is your niece and his granddaughter is your great niece.