alliance vs partnership

alliance

noun
  • The act of allying or uniting. 

  • Marriage. 

  • The persons or parties allied. 

  • The state of being allied. 

  • A union or connection of interests between families, states, parties, etc., especially between families by marriage and states by compact, treaty, or league. 

  • Any union resembling that of families or states; union by relationship in qualities; affinity. 

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 alliance and partnership occurred in a corpus of books? (source: Google Ngram Viewer )