Synonyms to sally port

abatis, advanced work, balistraria, bank, banquette, barbed-wire entanglement, barbican, barricade, barrier, bartizan, bastion, battlement, breastwork, bulwark, casemate, cheval-de-frise, circumvallation, contravallation, counterscarp, curtain, demibastion, dike, drawbridge, earthwork, enclosure, entanglement, escarp, escarpment, fence, fieldwork, fortalice, fortification, glacis, loophole, lunette, machicolation, mantelet, merlon, mound, outwork, palisade, parados, parapet, portcullis, postern gate, rampart, ravelin, redan, redoubt, scarp, sconce, stockade, tenaille, vallation, vallum, work, avenue, Autobahn, US highway, access, aisle, alley, alleyway, ambulatory, aperture, arcade, arterial, arterial highway, arterial street, artery, autoroute, autostrada, belt highway, blind alley, blowhole, boulevard, bypass, byway, camino real, carriageway, causeway, causey, channel, chaussee, chute, circumferential, cloister, close, colonnade, communication, conduit, connection, corduroy road, corridor, county road, court, covered way, crescent, cul-de-sac, dead-end street, debouch, defile, dirt road, door