granddaddy

/ˈɡrændˌdædi/
noun
  1. One's grandfather; the father of one's parent.
    • My granddaddy always let me help him in the garden.
    • Granddaddy used to tell us bedtime stories about his childhood farm.
    • She called her granddaddy to wish him a happy birthday.
  2. The earliest or most important example of something; the original or biggest of its kind.
    • This 1959 recording is considered the granddaddy of modern rock and roll.
    • That old oak tree is the granddaddy of all the trees in the park.
    • The company is the granddaddy of the tech industry, founded over a century ago.
What does "granddaddy" mean? | whatsthatwordmean | whatsthatwordmean