Its termed a "pitch"
natural grass or grass sand composite. The game cannot be played on a hard surface such as dried mud or on synthetic grass
Rugby is played on a leveled grass field known as a pitch.
Soccer and football are both played on the same field, at least in high school. Also there is a certain college that has a football field on top of their baseball field. Also I think Football and Rugby are played on the same field
Rugby Rugby
Its the 100 meter by 70 meter field where rugby is played on. A rugby ground is a term used for all the facilities and the playing area - the pitch is where the game is played within the ground.
The game was named after Rugby School where it was first played.
Rugby basketball is probably a modified game mixing rugby and basketball. I haven't played it but it sounds weird.
The standard rugby union game is played in two half's of 40 mins, totaling 80 mins
on the rugby field on the rugby field
The game of rugby (in both codes) is now word wide with 0ver 90 countries taking part in the game
Golf ,soccer and Rugby.
Rugby
1980 was the first official game