baseball vs volleyball

baseball

noun
  • A sport common in North America, the Caribbean, and Japan, in which the object is to strike a ball so that one of a nine-person team can run counter-clockwise among four bases, resulting in the scoring of a run. The team with the most runs after termination of play, usually nine innings, wins. 

  • The ball used to play the sport of baseball. 

  • A variant of poker in which cards with baseball-related values have special significance. 

volleyball

noun
  • A game played on a rectangular court between two teams of two to six players which involves striking a ball back and forth over a net. 

  • The inflated ball used in such a game. 

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