great-grandfather
Americannoun
Usage
What does great-grandfather mean? A great-grandfather is the father of a person’s grandparent (the grandfather of a person’s parent). When a father’s child has their own children, that father becomes a grandfather. When those children have their own children, he becomes a great-grandfather. Should great-grandfather be capitalized?Great-grandfather should be capitalized when it’s used as a proper name, as in Please tell Great-grandfather that I miss him. But great-grandfather does not need to be capitalized when it’s simply used as a way to refer to him, as in Please tell my great-grandfather that I miss him. Example: My kids were lucky enough to get to know three of their great-grandfathers.
Etymology
Origin of great-grandfather
First recorded in 1505–15
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Honoring her great-grandfather Cole Grove with the canary metaphor of the former, both songs celebrate personal salvation.
From Los Angeles Times • Apr. 16, 2026
The film's discovery has taken McFarland on another journey -- learning about the life of his great-grandfather William DeLyle Frisbee.
From Barron's • Apr. 13, 2026
His great-grandfather Thomas started the business in 1889 on the town's Green Street, before later moving to Dockhead Street.
From BBC • Feb. 28, 2026
He spoke of his religiosity — his grandfather and great-grandfather were Baptist preachers — and talked at length about the optimism, a political rarity these days, that undergirds his vision for the country.
From Los Angeles Times • Feb. 1, 2026
“This is your great-grandfather, Kwame. Your grandmother’s father.”
From "Kwame Crashes the Underworld" by Craig Kofi Farmer
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.