Bastion

Noun

 * 1) a projecting part of a rampart or other fortification
 * 2) a well-fortified position; a stronghold or citadel
 * 3)  a person, or thing, who strongly defends some principle

Adjectives for Bastion
sparkling; absurd; massive; futile; sloping; tower-like; coral.

Thesaurus
abatis, acropolis, advanced work, balistraria, bank, banquette, barbed-wire entanglement, barbican, barricade, barrier, bartizan, battlement, beachhead, blockhouse, breastwork, bridgehead, bulwark, bunker, casemate, castle, cheval-de-frise, circumvallation, citadel, contravallation, counterscarp, curtain, demibastion, dike, donjon, drawbridge, earthwork, enclosure, entanglement, escarp, escarpment, fasthold, fastness, fence, fieldwork, fort, fortalice, fortification, fortress, garrison, garrison house, glacis, hold, keep, loophole, lunette, machicolation, mantelet, martello, martello tower, merlon, mote, motte, mound, outwork, palisade, parados, parapet, peel, peel tower, pillbox, portcullis, post, postern gate, rampart, rath, ravelin, redan, redoubt, safehold, sally port, scarp, sconce, stockade, strong point, stronghold, tenaille, tower, tower of strength, vallation, vallum, ward, work

Related terms

 * bastille
 * bastioned