niece
nounUK /niːs/
US /niːs/
A niece is the daughter of your brother or sister.
My niece is coming to visit us this weekend.
OTHER MEANINGS
2. A female descendant in a broader family line, such as the daughter of a cousin.
She treats her cousin's daughter like a niece.
3. A term of affection for a younger woman or girl in one's community or church.
The pastor greeted every niece in the congregation warmly.
4. In some cultures, the daughter of a close family friend addressed as an aunt or uncle.
He called his mother's best friend's daughter his niece.