Synonyms to impact area

bunker, abri, acropolis, air-raid shelter, antre, approach trench, archives, armory, arsenal, attic, bank, basement, bastion, bay, beachhead, bin, blockhouse, bomb shelter, bombproof, bonded warehouse, bookcase, box, bridgehead, burrow, buttery, cargo dock, castle, cave, cavern, cellar, cellarage, chest, citadel, closet, coal bin, communication trench, concealment, conservatory, control center, countermine, coupure, cove, cover, covert, coverture, crate, crib, cupboard, cyclone cellar, depository, depot, ditch, dock, donjon, double sap, drawer, dugout, dump, earth, entrenchment, exchequer, fallout shelter, fasthold, fastness, fire trench, flying sap, fort, fortified tunnel, fortress, fosse, foxhole, funk hole, gallery, garrison, garrison house, glory hole, godown, grot, grotto, hold, hole, hutch, keep, lair, library, locker, lumber room, lumberyard, magasin, magazine, martello, martello tower, mine, moat, mote, motte, parallel, peel, peel tower, pillbox, post, potato cellar, proving ground, rack, radar tracking station, rath, repertory, repository, reservoir, rick, safehold, safety zone, sap, sewer, shelf, she