American football 
noun [mass noun]
A kind of football played with an oval ball on a field marked out as a gridiron. Points are scored mainly through touchdowns and field goals. Each side has eleven players on the field at any time. In the US called simply football.Having experienced professional football and American football he is eager for rugby to take on similar codes of practice....
- What I don't want is for football to become American football.
- The three most popular American spectator sports are baseball, basketball and American football.
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