bomb

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An explosive weapon detonated by impact, proximity to an object, a timing mechanism, or other means.
• noun An atomic or nuclear bomb. Used with the.
• noun Any of various weapons detonated to release destructive material, such as smoke or gas.
• noun Football A long forward pass.
• noun A container capable of withstanding high internal pressure.
• noun A vessel for storing compressed gas.
• noun A portable, manually operated container that ejects a spray, foam, or gas under pressure.
• noun Slang A dismal failure; a fiasco.
• noun Slang An old car.
• noun Slang One that is excellent or superior. Used with the.
• noun A large amount of money.
• noun A great success.
• intransitive verb To attack, damage, or destroy with or as if with bombs.
• intransitive verb To drop a bomb or bombs.
• intransitive verb Slang To fail miserably.
• intransitive verb Slang To paint a graffito.

from The Century Dictionary.

• To attack with bombs; bombard.
• noun An explosive projectile, consisting of a hollow ball or spherical shell, generally of cast-iron, filled with a bursting charge, fired from a mortar, and usually exploded by means of a fuse or tube filled with a slow-burning compound, which is ignited by the exploding powder when the mortar is discharged.
• noun Any missile constructed upon similar principles: as, a dynamite bomb.
• noun In geology, a block of scoria ejected from the crater of a volcano.
• noun A small war-vessel carrying mortars for throwing bombs; a bomb-ketch.
• noun A great noise; a loud hollow sound; the stroke of a bell.
• A variant of boom.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete A great noise; a hollow sound.
• noun (Mil.) A shell; esp. a spherical shell, like those fired from mortars. See Shell.
• noun A bomb ketch.
• noun (Mil.) a chest filled with bombs, or only with gunpowder, placed under ground, to cause destruction by its explosion.
• noun (Naut.) a small ketch or vessel, very strongly built, on which mortars are mounted to be used in naval bombardments; -- called also mortar vessel.
• noun a lance or harpoon with an explosive head, used in whale fishing.
• noun a mass of lava of a spherical or pear shape.
• intransitive verb obsolete To sound; to boom; to make a humming or buzzing sound.
• transitive verb obsolete To bombard.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An explosive device used or intended as a weapon.
• noun slang A failure; an unpopular commercial product.
• noun US, Australia, informal A car in poor condition.
• noun UK, slang A large amount of money, a fortune.
• noun chiefly UK, slang A success; the bomb.
• noun chiefly UK, slang A very attractive woman; a bombshell.
• noun often in combination An action or statement that causes a strong reaction.
• noun dated The atomic bomb.
• noun American football, slang A long forward pass.
• noun chemistry A heavy-walled container designed to permit chemical reactions under high pressure.
• noun informal A jump into water in a squatting position, with the arms wrapped around the legs, for maximum splashing.
• verb transitive, intransitive To attack using one or more bombs; to bombard.
• verb intransitive, slang To fail dismally.