[{"Bold_text": "noun", "List Items": ["a football field.", "a utensil consisting of parallel metal bars on which to broil meat or other food.", "any framework or network resembling a gridiron.", "a structure above the stage of a theater, from which hung scenery and the like are manipulated."]}, {"Bold_text": "verb (used with object)", "List Items": ["to mark off into squares or design with a network of squares."]}]