Synonyms and related words :
Texas tower, abatis, advanced work, air hole, alternative, armhole, avenue, balistraria, bank, banquette, barbed-wire entanglement, barbican, barricade, barrier, bartizan, bastion, battlement, beacon, belvedere, bleachers, blowhole, breastwork, bridge, bullet-hole, bulwark, bunghole, casemate, channel, cheval-de-frise, choice, chute, circumvallation, conning tower, contravallation, counterscarp, cringle, curtain, deadeye, debouch, demibastion, dike, dodge, door, drawbridge, earthwork, egress, emunctory, enclosure, entanglement, escape, escape clause, escape hatch, escarp, escarpment, estuary, evasion, exhaust, exit, eye, eyelet, fence, fieldwork, floodgate, flume, fortalice, fortification, gallery, gasket, gazebo, glacis, grandstand, grommet, guide, keyhole, knothole, lighthouse, lookout, loop, lunette, machicolation, manhole, mantelet, merlon, mound, mousehole, observation post, observatory, opening, out, outcome, outfall, outgate, outgo, outlet, outlook, outwork, overlook, palisade, parados, parapet, peanut gallery, peephole, pharos, pigeonhole, pinhole, placket, placket hole, pore, port, portcullis, porthole, postern gate, pretext, punch-hole, quibble, rampart, ravelin, redan, redoubt, ringside, ringside seat, sally port, saving clause, scarp, sconce, sighthole, sluice, spiracle, spout, stockade, subterfuge, tap, tenaille, top gallery, tower, vallation, vallum, vent, ventage, venthole, vomitory, watchtower, way of escape, way out, weir, work