gridiron gridiron /ˈgrɪˌdaɪɝn/

noun

1. The playing field on which football is played  ( football field , gridiron )
   the playing field on which football is played
    The football field was freshly mowed and lined for the big game
   The football field was freshly mowed and lined for the big game
   
2. A cooking utensil of parallel metal bars; used to grill fish or meat  ( grid , gridiron )
   a cooking utensil of parallel metal bars; used to grill fish or meat