Bunker

Noun

 * 1)  A hardened shelter, often buried partly or fully underground, designed to protect the inhabitants from falling bombs or other attacks.
 * 2)  A large container or bin for storing coal, often built outside in the yard of a house. Now rare, as different types of fuels and energy sources are being used.
 * 3)  A container for storing coal or fuel oil for a ship's engine.
 * 4)  A sand-filled hollow on a golf course.
 * 5)  An obstacle used to block an opposing player's view and field of fire.

Verb

 * 1)  To load a vessel with oil or coal for the engine.
 * 2)  To hit a golfball into a bunker.
 * 3)  To fire constantly at a hiding opponent, preventing them from firing at other players and trapping them behind the barrier. This can also refer to eliminating an opponent behind cover by rushing the position and firing at extremely close range as the player becomes exposed.

Thesaurus
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, impact area, 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, shelter, slit trench, stack, stack room, stock room, storage, store, storehouse, storeroom, storm cave, storm cellar, strong point, stronghold, subbasement, subterrane, subway, supply base, supply depot, tank, tower, tower of strength, tracking station, treasure house, treasure room, treasury, trench, tunnel, vat, vault, ward, warehouse, warren, wine cellar

Derived terms

 * bunker fuel
 * bunker down