calaboose, fort, blockhouse, fortifications, penal colony, penitentiary, jail, palisade, brig, barracks, pow camp, encampment, fortress, presidio, cookhouse, sallyport, stalag, hoosegow, prison, watchtower, solitary confinement, lockup, battlement, cellblock, bunks, gaol, guardroom, concentration camp, barbed wire, entrenchments, gibbet, gulag, paddy wagon, guardhouses, slit trench, coaling, maginot line, garrison, flagstaff, cavalrymen, teepees, tipi, outpost, gun emplacement, barbwire, internment camp, panopticon, sutler, slammer, bluecoats, borstal, lunatic asylum, revetment, yardarm, workhouse, prisoner, dragoons, pup tent, detention centre, corregidor, bastille, palings, cavalryman, sing sing, internees, detention, log cabin, correctional, watchhouse, ramparts, nuthouse, redcoat, adobe brick, infirmary, jailer, railhead, firebase, bedroll, modocs, huts, old ironsides, tepee, motte, boneyard, praetorian guard, rimrock, frontiersmen, monument, confinement, reformatory, huaca, bateau, gallows, midden, supermax, chemulpo, wigwam, barricades, earthen, bedsteads, quonset hut, chiricahua apache, barricade, breastwork, corral, stockades, breastworks, pier, trestle, fortification, redoubt, earthwork, intrenchments, raft, rampart, enclosure, fence

dachau

kraal

fence in, munition, penal facility, penal institution, surround, wall