A spherical object or entity, a steel ball. A spherical or almost spherical body, a ball of flame. Any of various movable and round or oblong objects used in various athletic activities and games. Such an object moving, thrown, hit, or kicked in a particular manner: a low ball; a fair ball. Sports, a game, especially baseball or basketball, played with such an object. A pitched baseball that does not pass through the strike zone and is not swung at by the batter. A solid spherical or pointed projectile, such as one shot from a cannon.