a military aircraft that drops bombs during flight. [WordNet 1.5]
a large sandwich on a long crusty roll that is split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the US. [WordNet 1.5]
a person who drops bombs or plants and explodes bombs, especially surreptitously. [PJC]
a bomber jacket. [PJC]

top

OXFORD DICTIONARY

bomber, n.
1 an aircraft equipped to carry and drop bombs.
2 a person using bombs, esp. illegally.

Idiom

bomber jacket a short leather or cloth jacket tightly gathered at the waist and cuffs.

top

THESAURUS

bomber

Mafioso, Young Turk, alarmist, annihilator, arsonist, artillerist, artilleryman, assassin, beast, beldam, berserk, berserker, biblioclast, bomb thrower, bombardier, brute, burner, cannoneer, demolisher, demon, destroyer, devil, dragon, dynamitard, dynamiter, exterminator, fiend, fire-eater, firebrand, fury, goon, gorilla, gunner, gunsel, hardnose, hell-raiser, hellcat, hellhound, hellion, holy terror, hood, hoodlum, hothead, hotspur, hun, iconoclast, idol breaker, idoloclast, incendiary, killer, machine gunner, mad dog, madcap, monster, mugger, nihilist, rapist, revolutionary, ruiner, savage, scaremonger, she-wolf, spitfire, syndicalist, termagant, terror, terrorist, tiger, tigress, tough, tough guy, ugly customer, vandal, violent, virago, vixen, wild beast, witch, wolf, wrecker

top

ROGET THESAURUS

bomber

Ship

N ship, vessel, sail, craft, bottom, navy, marine, fleet, flotilla, shipping, man of war, transport, tender, storeship, merchant ship, merchantman, packet, liner, whaler, slaver, collier, coaster, lighter, fishing boat, pilot boat, trawler, hulk, yacht, baggala, floating hotel, floating palace, ocean greyhound, ship, bark, barque, brig, snow, hermaphrodite brig, brigantine, barkantine, schooner, topsail schooner, for and aft schooner, three masted schooner, chasse-maree, sloop, cutter, corvette, clipper, foist, yawl, dandy, ketch, smack, lugger, barge, hoy, cat, buss, sailer, sailing vessel, windjammer, steamer, steamboat, steamship, liner, ocean liner, cruiseship, ship of the line, mail steamer, paddle steamer, screw steamer, tug, line of steamers, destroyer, cruiser, frigate, landing ship, LST, aircraft carrier, carrier, flattop, nuclear powered carrier, submarine, submersible, atomic submarine, boat, pinnace, launch, life boat, long boat, jolly boat, bum boat, fly boat, cock boat, ferry boat, canal boat, swamp boat, ark, bully, battery, bateau, broadhorn, dory, droger, drogher, dugout, durham boat, flatboat, galiot, shallop, gig, funny, skiff, dingy, scow, cockleshell, wherry, coble, punt, cog, kedge, lerret, eight oar, four oar, pair oar, randan, outrigger, float, raft, pontoon, prame, iceboat, ice canoe, ice yacht, catamaran, hydroplane, hovercraft, coracle, gondola, carvel, caravel, felucca, caique, canoe, birch bark canoe, dugout canoe, galley, galleyfoist, bilander, dogger, hooker, howker, argosy, carack, galliass, galleon, polacca, polacre, tartane, junk, lorcha, praam, proa, prahu, saick, sampan, xebec, dhow, dahabeah, nuggah, kayak, keel boat, log canoe, pirogue, quadrireme, trireme, stern-wheeler, wanigan, wangan, wharf boat, balloon, airship, aeroplane, biplane, monoplane, triplane, hydroplane, aerodrome, air balloon, pilot balloon, fire balloon, dirigible, zeppelin, aerostat, Montgolfier, kite, parachute, jet plane, rocket plane, jet liner, turbojet, prop-jet, propeller plane, corporate plane, corporate jet, private plane, private aviation, airline, common carrier, fighter, bomber, fighter-bomber, escort plane, spy plane, supersonic aircraft, subsonic aircraft, afloat, aboard, on board, on ship board, hard a lee, hard a port, hard a starboard, hard a weather.

For further exploring for "bomber" in Webster Dictionary Online