noun
granddaddy
noun
1
A very informal, affectionate word for grandfather.
"Her granddaddy used to tell the best stories on the porch."
2
The original or most important example of something, from which later versions descend.
"That old arcade game is the granddaddy of every shooter that came after it."
How to Use Granddaddy
Learner’s notesIn plain EnglishEither an affectionate word for grandfather, or, figuratively, the original or biggest example of its kind.
Common pairings
the granddaddy of them all
granddaddy of all storms
Word Forms
granddaddies plural
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Her _____ used to tell the best stories on the porch.
Etymology
From "grand-" plus "daddy," a child's word for father.