Definition of founding father noun from the Oxford Advanced Learner's Dictionary

     

    founding father

     noun
    noun
    BrE
     
    ; NAmE
     
     
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  1. 1(formal) a person who starts or develops a new movement, institution or idea one of the founding fathers of modern psychology
  2. 2Founding Father a member of the group of people who wrote the Constitution of the US in 1787 Culture The best-known Founding Fathers of the US are George Washington, Thomas Jefferson, Benjamin Franklin, Alexander Hamilton, John Adams and James Madison.
See the Oxford Advanced American Dictionary entry: founding father