1) Ball game 2) Field game 3) The ball used in this game 
Pushball is a game played by two sides on a field usually 140 yards (128 m) long and 50 yd (45.7 m) wide, with a ball 6 feet (1.83 m) in diameter and 50 lb (22.7 kg) in weight. The sides usually number eleven each, there being five forwards, two left-wings, two right-wings and two goal-keepers. The goals consist of two upright posts 18 ft (5.5 m) ...
[n] - a game using a leather-covered ball 6 feet in diameter
noun a game using a leather ball six feet in diameter; the two side try to push it across the opponents` goal
a game played with a large, heavy ball, usually about 6 ft. (1.8 m) in diameter, which two sides attempt to push to opposite goals. · the ball used in this game.