partnership vs solitude

partnership

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

  • The state of being associated with a partner. 

  • 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, 

solitude

noun
  • A lonely or deserted place. 

  • Aloneness; the state of being alone, solitary, or by oneself. 

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