Football pitch
The pitch is rectangular in shape. The longer sides are called touchlines. The other opposing sides are called the goal lines. The two goal lines must be between wide, and be the same length. The two touchlines be between long, and be the same length. All lines on the ground must be equally wide, not to exceed . The corners of the pitch are marked by corner flags.
Stadium
"Stadium" is the Latin form of the Greek word "stadion" ("στάδιον"), a measure of length equalling the length of 600 human feet. As feet are of variable length the exact length of a stadion depends on the exact length adopted for 1 foot at a given place and time. Although in modern terms 1 stadion = , in a given historical context it may actually signify a length up to 15% larger or smaller.