[{"Bold_text": "noun", "List Items": ["a solid or louvered movable cover for a window.", "a movable cover, slide, etc., for an opening.", "a person or thing that shuts .", "Photography.a mechanical device for opening and closing the aperture of a camera lens to expose film or the like."]}, {"Bold_text": "verb (used with object)", "List Items": ["to close or provide with shutters:She shuttered the windows.", "to close (a store or business operations) for the day or permanently."]}, {"Bold_text": "verb (used without object)", "List Items": ["to close or close down:The factory has shuttered temporarily."]}]