The English word football may mean any one of several team sports (or the ball used in that respective sport), depending on the national or regional origin and location of the person using the word.Sowhere English is a first language the unqualified use of the word football is used to refer to the most popular code of football in that region. The sports most frequently referred to as simply football are association football, American football, Australian rules football, Canadian football, Gaelic football, rugby league football and rugby union football.