19 relations: American football, American football positions, Canadian football, Colloquialism, Comparison of American and Canadian football, Down (gridiron football), Eligible receiver, Glossary of American football, National Collegiate Athletic Association, National Federation of State High School Associations, National Football League, Neutral zone (gridiron football), Official (American football), Parallel (geometry), Scrum (rugby), Snap (gridiron football), Sportvision, Walter Camp, 1st & Ten (graphics system).
American football, referred to as football in the United States and Canada and also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end.
In American football each team has 11 players on the field at one time.
Canadian football is a sport played in Canada in which two teams of 12 players each compete for territorial control of a field of play long and wide attempting to advance a pointed prolate spheroid ball into the opposing team's scoring area (end zone).
Everyday language, everyday speech, common parlance, informal language, colloquial language, general parlance, or vernacular (but this has other meanings too), is the most used variety of a language, which is usually employed in conversation or other communication in informal situations.
American and Canadian football are gridiron codes of football that are very similar.
A down is a period in which a play transpires in American and Canadian football.
In American football and Canadian football, not all players on offense are entitled to receive a forward pass.
The following terms are used in American football, both conventional and indoor.
The National Collegiate Athletic Association (NCAA) is a non-profit organization which regulates athletes of 1,281 institutions and conferences.
The National Federation of State High School Associations (NFHS) is the body that writes the rules of competition for most high school sports and activities in the United States.
The National Football League (NFL) is a professional American football league consisting of 32 teams, divided equally between the National Football Conference (NFC) and the American Football Conference (AFC).
In gridiron football, the neutral zone is an area in which no member of either team may be, other than the person holding the ball.
In American football, an official is a person who has responsibility in enforcing the rules and maintaining the order of the game.
In geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel.
A scrum (short for scrummage) is a method of restarting play in rugby that involves players packing closely together with their heads down and attempting to gain possession of the ball.
A snap (colloquially called a "hike", "snapback", or "pass from center") is the backwards passing of the ball in American and Canadian football at the start of play from scrimmage.
Sportvision is a private company that provides various television viewing enhancements to a number of different professional sporting events.
Walter Chauncey Camp (April 7, 1859 – March 14, 1925) was an American football player, coach, and sports writer known as the "Father of American Football".
1st & Ten is a computer system that augments televised coverage of football by inserting graphical elements on the field of play as if they were physically present: the inserted element stays fixed within the coordinates of the playing field, and obeys the visual rules of foreground objects occluding background objects.