baseball
- A sport played between two teams of nine players each, where the objective is to score runs by hitting a ball with a bat and running around a series of bases to reach home plate. nounBaseball is often referred to as America's pastime.He has been playing baseball since he was a child.
- The ball used in the sport of baseball, typically consisting of a cork center wrapped in yarn and covered with leather. nounThe pitcher threw the baseball with incredible speed.She caught the baseball with her glove.