noun🔗Share大姪孫A 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. "私の兄の孫娘、リリーは、私の大姪孫です。familyChat with AIVocabulary GamePractice Reading