Areas reserved or maintained as outdoor playing space principally for organised pitch sports (football, cricket, rugby and hockey).

the circumstances under which competition occurs; "the government's objective is to insure a genuinely level playing field for American industry and commerce in Europe"

a piece of land prepared for playing a game; "the home crowd cheered when Princeton took the field"

see field of play

Land laid out with a pitch or pitches for games.

A playing field is a field used for playing sports or games. They are generally outdoors, but many large structures exist to enclose playing fields from bad weather. Generally, playing fields are wide expanses of grass, dirt or sand without many obstructions.