gridiron

noun

• 1a frame of parallel bars or beams, typically in two sets forming a grid, in particular:
• a frame of parallel metal bars used for grilling meat or fish over an open fire.
• a frame of parallel beams for supporting a ship in dock.
• (in the theatre) a framework over a stage supporting scenery and lighting.

• 2a field for American football, marked with regularly spaced parallel lines.
• [mass noun] North American the sport of American football: [as modifier]:the national gridiron season

• 3a grid pattern, especially of streets.