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Noun: grandaddy  'gran,da-dee
Usage: informal
  1. [N. Amer, informal] The father of your father or mother
    - grandfather, gramps, granddad, grandad, granddaddy, grandpa, grandpapa [archaic]
     
  2. The first, or best, most important, or largest example of a particular thing
    - granddaddy [informal]

Derived forms: grandaddies

Type of: grandparent

Encyclopedia: Grandaddy

Nearest

Grand River
grand slam
Grand Teton
Grand Teton National Park
grand theft
grand total
grand tour
grand Turk
grand unified theory
grandad
grandaddy
grandam
grandame
grandaunt
grandchild
granddad
granddaddy
granddaughter
grande dame
grandee
grandeur