THESAURUS
moat
abri, abysm, abyss, approach trench, aqueduct, arch dam, arroyo, backstop, bamboo curtain, bank, bar, barrage, barrier, bear-trap dam, beaver dam, boom, box canyon, breach, break, breakwater, breastwork, brick wall, buffer, bulkhead, bulwark, bunker, canal, canalization, canyon, cavity, channel, chap, chasm, check, chimney, chink, cleft, cleuch, clough, cofferdam, col, communication trench, coulee, couloir, countermine, coupure, crack, cranny, crevasse, crevice, crimp, cut, cwm, dam, defense, defile, dell, dike, ditch, donga, double sap, draw, dugout, earthwork, embankment, entrenchment, excavation, fault, fence, fire trench, fissure, flaw, flume, flying sap, fortified tunnel, fosse, foxhole, fracture, furrow, gallery, gap, gape, gash, gate, goffer, gorge, gravity dam, groin, groove, gulch, gulf, gully, gutter, ha-ha, hole, hydraulic-fill dam, incision, iron curtain, jam, jetty, joint, kennel, kloof, leak, leaping weir, levee, logjam, milldam, mine, mole, mound, notch, nullah, opening, parallel, parapet, pass, passage, pleat, portcullis, rampart, ravine, rent, rift, rime, roadblock, rock-fill dam, rupture, sap, scissure, seam, seawall, shutter dam, slit, slit trench, slot, split, stone wall, sunk fence, trench, trough, tunnel, valley, void, wadi, wall, weir, wicket dam, work
ROGET THESAURUS
moat
Defense
N
defense, protection, guard, ward, shielding, propugnation, preservation, guardianship, area defense, site defense, self-defense, self-preservation, resistance, safeguard, balistraria, bunker, screen, camouflage, fortification, munition, muniment, trench, foxhole, bulwark, fosse,
moat, ditch, entrenchment, intrenchment, kila, dike, dyke, parapet, sunk fence, embankment, mound, mole, bank, sandbag, revetment, earth work, field- work, fence, wall dead wall, contravallation, paling, palisade, haha, stockade, stoccado, laager, sangar, barrier, barricade, boom, portcullis, chevaux de frise, abatis, abattis, abbatis, vallum, circumvallation, battlement, rampart, scarp, escarp, counter-scarp, glacis, casemate, vallation, vanfos, buttress, abutment, shore, breastwork, banquette, curtain, mantlet, bastion, redan, ravelin, vauntmure, advance work, horn work, outwork, barbacan, barbican, redoubt, fort-elage, fort-alice, lines, loophole, machicolation, sally port, hold, stronghold, fastness, asylum, keep, donjon, dungeon, fortress, citadel, capitol, castle, tower of strength, tower of strength, fort, barracoon, pah, sconce, martello tower, peelhouse, blockhouse, rath, wooden walls, bulletproof vest, armored vest, buffer, corner stone, fender, apron, mask, gauntlet, thimble, carapace, armor, shield, buckler, aegis, breastplate, backplate, cowcatcher, face guard, scutum, cuirass, habergeon, mail, coat of mail, brigandine, hauberk, lorication, helmet, helm, bassinet, salade, heaume, morion, murrion, armet, cabaset, vizor, casquetel, siege cap, headpiece, casque, pickelhaube, vambrace, shako, bearskin, panoply, truncheon, garrison, picket, piquet, defender, protector, guardian, bodyguard, champion, knight-errant, Paladin, propugner, bulletproof window, hardened site, defending, defensive, mural, armed, armed at all points, armed cap-a-pie, armed to the teeth, panoplied, iron-plated, ironclad, loopholed, castellated, machicolated, casemated, defended, proof against, armored, ballproof, bulletproof, hardened, defensively, on the defense, on the defensive, in defense, at bay, pro aris et focis, Int, no surrender!, defense not defiance, Dieu defend le droit, fidei defensor, defender of the faith.
Inclosure
N
inclosure, envelope, case, wrapper, girdle, pen, fold, pen fold, in fold, sheep fold, paddock, pound, corral, yard, net, seine net, wall, hedge, hedge row, espalier, fence, pale, paling, balustrade, rail, railing, quickset hedge, park paling, circumvallation, enceinte, ring fence, barrier, barricade, gate, gateway, bent, dingle, door, hatch, cordon, prison, dike, dyke, ditch, fosse,
moat.
Furrow
N
furrow, groove, rut, sulcus, scratch, streak, striae, crack, score, incision, slit, chamfer, fluting, corduroy road, cradle hole, channel, gutter, trench, ditch, dike, dyke,
moat, fosse, trough, kennel, ravine, tajo, thank-ye-ma'am, furrowed, ribbed, striated, sulcated, fluted, canaliculated, bisulcous, bisulcate, bisulcated, canaliferous, trisulcate, corduroy, unisulcate, costate, rimiform.
Conduit
N
conduit, channel, duct, watercourse, race, head race, tail race, abito, aboideau, aboiteau, bito, acequia, acequiador, acequiamadre, arroyo, adit, aqueduct, canal, trough, gutter, pantile, flume, ingate, runner, lock-weir, tedge, vena, dike, main, gully,
moat, ditch, drain, sewer, culvert, cloaca, sough, kennel, siphon, piscina, pipe, funnel, tunnel, water pipe, waste pipe, emunctory, gully hole, artery, aorta, pore, spout, scupper, adjutage, ajutage, hose, gargoyle, gurgoyle, penstock, weir, flood gate, water gate, sluice, lock, valve, rose, waterworks, pipeline, vascular.