cooperation vs partnership

cooperation

noun
  • The act of cooperating. 

  • Association for mutual benefit, such as for purposes of production or purchase. 

  • Active help from a person, organization, etc., such as an orderly sharing of space or resources. 

partnership

noun
  • The state of being associated with a partner. 

  • An association of two or more people to conduct a business 

  • The period when two specific batsmen are batting, from the fall of one wicket until the fall of the next; the number of runs scored during this period, 

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