baseball
n. C / Un. a popular team sport played with a bat, a ball, and gloves. Two teams of nine players take turns hitting the ball and running around four bases to score points.
n. a ball game played between two teams of nine on a field with four bases arranged in a diamond. Teams alternate between batting to score runs and fielding to prevent the opponent from scoring.
We are going to watch a baseball game this afternoon.
The pitcher threw the ball so fast that the batter could not hit it during the final inning of the baseball game.
While cricket remains dominant in many former British colonies, baseball has become a cultural cornerstone in nations like Japan and the Dominican Republic, where local leagues draw massive crowds.
From base + ball.
Uncountable when referring to the sport itself; countable when referring to the physical ball used in the game.