football

Football throughout the world
Depending on which part of the world you live in, the word football when referring to a specific game can mean any one of the above.

Because of this, much friendly' controversy has erupted over the term football, primarily because it is used in different ways in different parts of the world. Two teams play against each other to score with a ball in the opponent's area. The agreement ends there.

International
Most of the world, outside of North America and Australia, use the term football to mean "Association football". Many also use "soccer" for the same game.
North America
In the United States and Canada, football almost always refers to American football or Canadian football, with Association football being referred to as soccer. It should be noted that although Canadian football is similar to American football this is not because Canadian football descends from American football. In fact, American football originated in the adoption of Rugby Union rules by Harvard University after it had played three matches against McGill University of Montreal, which followed the Rugby Union code. Proximity, common personalities, influences affecting both games, and the long-standing desire of the Canadian Football League to expand into the United States have kept them similar. For example, Canadian rugby's (precursor to Canadian football) early use of a limited number of American players and coaches helped introduce the forward pass into Canadian football several years after it was first introduced in the United States, while the CFL's interest in expansion to the United States led to the value of a touchdown being increased from 5 points to 6 in the 1950s.

Australia
In Australia, football usually means Australian Rules Football, although it can also mean Rugby League or Rugby Union. The term "Gridiron" is used to refer to the American form. Australian Rules Football was once historically called "Victorian football".
Conceptual art
Three sided football is played on a hexagonal pitch where goals are counted against the conceding side. This encourages shifting alliances and allows players a choice of goals to score in. It was devised by the artist Asger Jorn and has been promoted in England, Scotland, Italy and Austria by the Luther Blissett Three-sided Football League. The first known game played was organized by the London Psychogeographic Association at the Glasgow Anarchist Summer School in 1993.