Dictionary.com
Thesaurus.com

great-grandfather

American  
[greyt-gran-fah-ther, -grand-] / ˌgreɪtˈgrænˌfɑ ðər, -ˈgrænd- /

noun

  1. a grandfather of one's father or mother.


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.

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

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

The North Korean leader's daughter Kim Ju Ae has made her first visit to a mausoleum housing her grandfather and great-grandfather, state media images showed Friday, further solidifying her place as her father's successor.

From Barron's • Jan. 2, 2026

So too his great-grandfather, grandfather and father—watchmakers all.

From The Wall Street Journal • Dec. 25, 2025

Wrinkles were etched deep into his features, and he looked old enough to be her great-grandfather.

From "Beasts of Prey" by Ayana Gray