Definition, Meaning & Synonyms
grandnephew
noun
/ˈɡrændˌnɛf.juː/

Definition
A son of one’s sibling’s child; the grandson of one’s brother or sister.

Examples
- My sister’s son just had a baby, making him my grandnephew.
- The family gathered to celebrate the birthday of their grandnephew.
- As an aunt, I always enjoy spending time with my grandnephew.

Meaning
A grandnephew is related to you if your sibling has a child, and that child has a son.

Synonyms
- great-nephew