baseball, baseball game, ball - a ball game played with a bat and ball between two teams of 9 players; teams take turns at bat trying to score run; "he played baseball in high school"; "there was a baseball game on every empy lot"; "there was a desire for National League ball in the area"; "play ball!"

major-league club, major-league team - a team that plays in a major league

league, conference - an association of sports teams that organizes matches for its members