Definition of "baseball"

baseball

/ˈbeɪs.bɔːl/

noun
plural baseballs
1. 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.
  Quotations
  It was not very wonderful that Catherine, who had nothing heroic about her, should prefer cricket, base-ball, riding on horseback, and running about the country at the age of fourteen, to books.
  1803 (date written), [Jane Austen], Northanger Abbey; published in Northanger Abbey: And Persuasion. […], volumes (please specify |volume=I or II), London: John Murray, […], 20 December 1817 (indicated as 1818)
2. The ball used to play the sport of baseball.
3. A variant of poker in which cards with baseball-related values have special significance.