conspiracy vs playing ball

conspiracy

verb
  • To conspire. 

noun
  • The act of two or more persons, called conspirators, working secretly to obtain some goal, usually understood with negative connotations. 

  • A situation in which different phonological or grammatical rules lead to similar or related outcomes. 

  • A group of lemurs. 

  • A conspiracy theory; a hypothesis alleging conspiracy. 

  • An agreement between two or more persons to break the law at some time in the future. 

  • A group of ravens. 

playing ball

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