grandnieces
A grandniece is the daughter of one's niece or nephew. In simpler terms, she is the granddaughter of one's sibling. The term "grandniece" is used to describe this specific familial relationship. For example, if someone has a brother who has a daughter, that daughter is their niece. If that niece then has a daughter, that daughter is their grandniece. The male equivalent of a grandniece is a grandnephew. The relationship is also reciprocal; a grandniece's aunt or uncle is the sibling of her parent. This term is part of the extended family kinship system, denoting a generation removed from the direct niece or nephew relationship. While not as immediately close as a child or grandchild, a grandniece is still considered a member of the extended family.