- a daughter of one's nephew or niece; granddaughter of one's brother or sister
WordReference Random House Unabridged Dictionary of American English © 2026
great-niece
(grāt′nēs′),USA pronunciation n.
- a daughter of one's nephew or niece;
grandniece.
- 1880–85
Collins Concise English Dictionary © HarperCollins Publishers::
great-niece, grandniece n
'great-niece' also found in these entries (note: many are not synonyms or translations):