(n.) The father of one's grandfather or grandmother.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). great-grandfather. Retrieved September 27, 2026, from http://smartdefine.org/great-grandfather/definitions/2013597 |
| Chicago | Webster's. 2011. "great-grandfather" http://smartdefine.org/great-grandfather/definitions/2013597 (accessed September 27, 2026). |
| Harvard | Webster's 2011, great-grandfather, Smart Define, viewed 27 September, 2026, <http://smartdefine.org/great-grandfather/definitions/2013597>. |
| MLA | Webster's. "great-grandfather" 27 May 2011. Web. 27 September 2026. <http://smartdefine.org/great-grandfather/definitions/2013597> |