Football
The name football comes from the two words 'foot' and 'ball'. It is named football because the players of the game walk and often run (on their feet) while playing, as opposed to (for example) polo where the players ride horses. Football is played using a ball, also called a 'football', that is usually shaped like a sphere or an ellipsoid. The ball is often kicked with the foot, but depending on the game, it can also be hit using other parts of the body (in association football) and handling the ball is a part of some other sports known as 'football'. Players can use any part of their body except their arms and hands. Goal keepers can use every part of their body to keep the ball out of the goal.