In sports, out of bounds refers to being outside the playing boundaries of the field. The legality of going out of bounds, and the ease of prevention, vary by sport. Sports that use this term include American football, Canadian football, field lacrosse, basketball, rugby union, rugby league, and association football.
In gridiron football, a player who steps onto the sidelines during play is considered to be out of bounds. The horizontal white stripe near the bottom of this picture denotes the boundary, with legal play occurring above it.
Players not actively participating in a game and coaches remain on the sidelines during play
A pitch or a sports ground is an outdoor playing area for various sports. The term pitch is most commonly used in British English, while the comparable term in Australian, American and Canadian English is playing field or sports field.
American football field
Australian rules football field
Association football pitch, surrounded by running track
Bandy field