canopy

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A covering, usually of cloth, suspended over a throne or bed or held aloft on poles above an eminent person or a sacred object.
• noun Architecture An ornamental rooflike projection over a niche, altar, or tomb.
• noun A protective rooflike covering, often of canvas, mounted on a frame over a walkway or door.
• noun A high overarching covering, such as the sky.
• noun The uppermost layer in a forest, formed by the crowns of the trees.
• noun The transparent enclosure over the cockpit of an aircraft.
• noun The part of a parachute that opens up to catch the air.
• transitive verb To cover with or as if with a canopy.

from The Century Dictionary.

• To cover with a canopy, or as with a canopy.
• noun In general, any suspended covering that serves as a protection or shelter, as an awning, the tester of a bed, or the like; especially, an ornamental covering of cloth suspended on posts over a throne or the seat of a high dignitary, or any covering of cloth so disposed.
• noun In specific figurative use, the sky: as, anywhere under the canopy, or the canopy of heaven.
• noun In architecture, a decorative hood or cover supported or suspended over an altar, throne, chair of state, pulpit, and the like; also the ornamented projecting head of a niche or tabernacle.
• noun Nautical: A light awning over the stern-sheets of a boat.
• noun The brass framework over a hatch.
• noun A large smoke-bell. See smoke-bell.

from the GNU version of the Collaborative International Dictionary of English.

• noun A covering fixed over a bed, dais, or the like, or carried on poles over an exalted personage or a sacred object, etc. chiefly as a mark of honor.
• noun An ornamental projection, over a door, window, niche, etc.
• noun Also, a rooflike covering, supported on pillars over an altar, a statue, a fountain, etc.
• transitive verb To cover with, or as with, a canopy.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A high cover providing shelter, such as a cloth supported above an object, particularly over a bed.
• noun Any overhanging or projecting roof structure, typically over entrances or doors.
• noun The zone of the highest foliage and branches of a forest.
• noun In an airplane, the transparent cockpit cover.
• noun In a parachute, the cloth that fills with air and thus limits the falling speed.
• verb To cover with or as if with a canopy.
• verb To go through the canopy of a forest on a zipline.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the transparent covering of an aircraft cockpit
• noun the umbrellalike part of a parachute that fills with air
• verb cover with a canopy
• noun a covering (usually of cloth) that serves as a roof to shelter an area from the weather