Definition of "great-grandfather" []

• The father of a grandparent. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Some experts fear the water in the sewage-filled and trash-strewn lake is slowly killing the turtle, which is thought to weigh about 200 kilograms and is affectionately called "great-grandfather.""
• "Yet -- and here's where this June 30 comes in -- I look like my great-great grandfather, not like my great-grandfather."
• "My great-grandfather moved to this side of the world and made a conscious choice to deprive my grandfather of a bar-mitzvah."