A ditch dug as a fortification having a parapet of the excavated earth.

Roget 717: defense, protection, guard, ward; shielding etc. v.; propugnation^†, preservation etc. 670; guardianship.    area defense; site defense.    self-defense, self-preservation; resistance etc. 719.    safeguard etc. (safety) 664; balistraria^†; bunker, screen etc. (shelter) 666; camouflage etc. (concealment) 530; 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 etc. (inclosure) 232; palisade, haha, stockade, stoccado^†, laager^†, sangar^†; barrier, barricade; boom; portcullis, chevaux de frise [Fr.]; abatis, abattis^†, abbatis^†; vallum^†, circumvallation^†, battlement, rampart, scarp; escarp^†, counter-scarp; glacis, casemate^†; vallation^†, vanfos^†.    buttress, abutment; shore etc. (support) 215.    breastwork, banquette, curtain, mantlet^†, bastion, redan^†, ravelin^†; vauntmure^†; advance work, horn work, outwork; barbacan^†, barbican; redoubt; fort-elage [Fr.], fort-alice; lines.    loophole, machicolation^†; sally port.    hold, stronghold, fastness; asylum etc. (refuge) 666; keep, donjon, dungeon, fortress, citadel, capitol, castle; tower of strength, tower of strength; fort, barracoon^†, pah^†, sconce, martello tower^†, peelhouse^†, blockhouse, rath^†; wooden walls.    [body armor] 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 etc. (dress) 225.    bearskin; panoply; truncheon etc. (weapon) 727.    garrison, picket, piquet; defender, protector; guardian etc. (safety) 664; bodyguard, champion; knight-errant, Paladin; propugner^†.    bulletproof window.    hardened site.    ... show more

Roget 388a: insulation, incombustible material, noncombustible material; fire retardant, flame retardant; fire wall, fire door.    incombustibility, incombustibleness etc. adj.. extincteur [Fr.]; fire annihilator; amianth^†, amianthus^†; earth-flax, mountain-flax; asbestos; fireman, fire fighter, fire eater, fire department, fire brigade, engine company; pumper, fire truck, hook and ladder, aerial ladder, bucket; fire hose, fire hydrant.    [forest fires] backfire, firebreak, trench; aerial water bombardment.    wet blanket; fire extinguisher, soda and acid extinguisher, dry chemical extinguisher, CO-two extinguisher, carbon tetrachloride, foam; sprinklers, automatic sprinkler system; fire bucket, sand bucket.    [warning of fire] fire alarm, evacuation alarm, [laws to prevent fire] fire code, fire regulations, fire; fire inspector; code violation, citation.    ... show more

Roget 259: furrow, groove, rut, sulcus [Anat.], scratch, streak, striae, crack, score, incision, slit; chamfer, fluting; corduroy road, cradle hole.    channel, gutter, trench, ditch, dike, dyke; moat, fosse^†, trough, kennel; ravine etc. (interval) 198; tajo [U.S.], thank-ye-ma'am [U.S.].    ... show more

Dutch: loopgraaf

A long steep-sided depression in the ocean floor.

synonyms: deep, oceanic abyss.

Polish: rów oceaniczny

Any long ditch cut in the ground.

Impinge or infringe upon:
— This matter entrenches on other domains.

synonyms: encroach, entrench, impinge.

Fortify by surrounding with trenches.

Cut or carve deeply into.

Set, plant, or bury in a trench.

Cut a trench in, as for drainage:
— Trench the fields.

synonym: ditch.

Dig a trench or trenches.