an uncle of one's grandfather or grandmother.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use great-granduncle in a sentence
"It's my great-great-great-great-great-granduncle's fault," he sobbed.Over the Plum Pudding | John Kendrick Bangs
"My great-great-great-great-great-granduncle, the perpetual baby," said Hans, wiping his eyes.Over the Plum Pudding | John Kendrick Bangs
One night—the hundredth time—he teased Tabitha to tell him something new about his great-granduncle.Twice Told Tales | Nathaniel Hawthorne
One night, the hundredth time, he teased Tabitha to tell him something new about his great-granduncle.Twice-Told Tales | Nathaniel Hawthorne
And that he most likely inherited from his great-granduncle.Dave Porter in the Far North | Edward Stratemeyer