Parapet

n.	1.
	1.	(Arch.) A low wall, especially one serving to protect the edge of a platform, roof, bridge, or the like.
	2.	(Fort.) A wall, rampart, or elevation of earth, for covering soldiers from an enemy's fire; a breastwork. See Illust. of Casemate.

Noun	1.	parapet - a low wall along the edge of a roof or balcony
	2.	parapet - fortification consisting of a low wall Synonyms: breastwork

abatis, advanced work, arch dam, backstop, balistraria, bamboo curtain, bank, banquette, bar, barbed-wire entanglement, barbican, barrage, barricade, barrier, bartizan, bastion, battlement, bear-trap dam, beaver dam, boom, breakwater, breastwork, brick wall, buffer, bulkhead, bulwark, casemate, cheval-de-frise, circumvallation, cofferdam, contravallation, counterscarp, curtain, dam, defense, demibastion, dike, ditch, drawbridge, earthwork, embankment, enclosure, entanglement, escarp, escarpment, fence, fieldwork, fortalice, fortification, gate, glacis, gravity dam, groin, hydraulic-fill dam, iron curtain, jam, jetty, leaping weir, levee, logjam, loophole, lunette, machicolation, mantelet, merlon, milldam, moat, mole, mound, outwork, palisade, parados, portcullis, postern gate, rampart, ravelin, redan, redoubt, roadblock, rock-fill dam, sally port, scarp, sconce, seawall, shutter dam, stockade, stone wall, tackling, tenaille, vallation, vallum, wall, weir, wicket dam, work