Definition of great-grandfather in English:

great-grandfather

Syllabification: great-grand·fa·ther

noun

The father of one’s grandmother or grandfather.
More example sentences
  • The self-regard of these populations, he was convinced, would condemn them to the same fate as their fathers, grandfathers and great-grandfathers.
  • His great-grandfather, grandfather, father, and older brother Ned were physicians.
  • It is a well-worn path, because his great-grandfather, his grandfather and his father were all policemen.

Definition of great-grandfather in:

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Word of the day dinkum
Pronunciation: ˈdiNGkəm
adjective
(of an article or person) genuine