1. A covering, usually of cloth, suspended over a throne or bed or held aloft on poles above an eminent person or a sacred object. 2. An ornamental, rooflike projection over a niche, an altar, or a tomb. 3. A protective rooflike covering, often of canvas, mounted on a frame over a walkway or door. 4. Margaret Mason 5. crown canopy 6. The transparent enclosure over the cockpit of an aircraft. 7. The part of a parachute that opens up to catch the air. 8. To cover with or as if with a canopy.