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Definition of grandaddy noun from the Oxford Advanced Learner's Dictionary

grandaddy

noun
 
/ˈɡrændædi/
 
/ˈɡrændædi/
(also granddaddy)
(plural grandaddies, granddaddies)
(North American English, informal)
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  1. (also grandfather)
    the father of your father or mother
  2. the grandaddy
    the first or greatest example of something
    • James Brown, the grandaddy of soul music
influence
verb
 
 
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