A "niece" is the daughter of one's sibling, which means she is the female child of a brother or sister. For example, if you have a brother, his daughter is your niece. The term is used to describe this familial relationship in many cultures around the world. Nieces can play an important role in family dynamics, often forming close bonds with their aunts and uncles. They may participate in family gatherings and celebrations, creating lasting memories. The relationship can also extend to activities like babysitting or mentoring, enriching both the niece's and the adult's lives.