noun🔗ShareGroßnichteA granddaughter of one's sibling; a daughter of one's nephew or niece. (Brother's granddaughter: fraternal grandniece. Sister's granddaughter: sororal grandniece.)"My brother's granddaughter, Lily, is my grandniece. "Lilly, die Enkelin meines Bruders, ist meine Großnichte.familyChat with AIVocabulary GamePractice Reading