A daughter of one’s sibling, brother-in-law, or sister-in-law; either the daughter of one's brother ("fraternal niece"), or of one's sister ("sororal niece").

plural of niece

Of, pertaining to, or characteristic of a niece.

A surname.

plural of Niece

A surname.

Someone's nephew's wife. / Someone's sibling's daughter-in-law. / Someone's spouse's sibling's daughter-in-law. / Someone's husband's niece. (Usually called a niece.)

Synonym of grandniece

The daughter of one's sister.

The daughter of one's brother.