found vs pioneer

found

verb
  • To start (an institution or organization). 

  • To form by melting a metal and pouring it into a mould; to cast. 

  • To melt, especially of metal in an industrial setting. 

  • To begin building. 

noun
  • A thin, single-cut file for comb-makers. 

pioneer

verb
  • To be the first to do or achieve (something), preparing the way for others to follow. 

noun
  • A member of a children’s organization operated by the Communist Party, typically in the second of three stages toward becoming an member of the Party itself. 

  • A person or other entity who is first or among the earliest in any field of inquiry, enterprise, or progress. 

  • One who goes before, as into the wilderness, preparing the way for others to follow. 

  • Some people will consider their national heroes to be pioneers of civilization. 

  • A member of any of several European organizations advocating abstinence from alcohol. 

How often have the words found and pioneer occurred in a corpus of books? (source: Google Ngram Viewer )