UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈbɒm/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/bɑm/ ,USA pronunciation: respelling(bom)

WordReference Random House Learner's Dictionary of American English © 2020
bomb /bɑm/USA pronunciation   n. 
  1. Militarya case filled with an explosive and used as a weapon.
  2. an aerosol can and its contents:A bug bomb contains spray that kills bugs.
  3. Slang.
    • an absolute failure:That show was a complete bomb and closed in a few days.
    • British TermsBrit. a success;
      hit:That show was a complete bomb and sold hundreds of tickets every night.
  4. the bomb, [countable;  singular]
    • Physics atomic bomb.
    • Physicsnuclear weapons thought of as a group.

  1. to hurl bombs at or drop bombs upon:[+ object]the day they bombed Pearl Harbor.
  2. [Slang.]to defeat decisively;
    trounce:[+ object]We played against our teachers and bombed them fifty-five to nothing.
  3. [no object] Slang. to fail completely;
    flop: The play bombed in Boston.

WordReference Random House Unabridged Dictionary of American English © 2020
bomb  (bom),USA pronunciation n. 
  1. [Mil.]a projectile, formerly usually spherical, filled with a bursting charge and exploded by means of a fuze, by impact, or otherwise, now generally designed to be dropped from an aircraft.
  2. any similar missile or explosive device used as a weapon, to disperse crowds, etc.:a time bomb; a smoke bomb.
  3. Also called  volcanic bomb. [Geol.]a rough spherical or ellipsoidal mass of lava, ejected from a volcano and hardened while falling.
  4. See  aerosol bomb. 
  5. [Football.]a long forward pass, esp. one to a teammate who scores a touchdown.
  6. [Slang.]
    • an absolute failure;
      fiasco:The play was a bomb and closed after two performances.
    • [Chiefly Brit.]an overwhelming success:The novel is selling like a bomb.
  7. [Jazz.]a sudden, unexpected accent or rhythmic figure played by a drummer during a performance.
  8. a lead or lead-lined container for transporting and storing radioactive materials.
  9. the bomb: 
    • See  atomic bomb. 
    • nuclear weapons collectively.
  10. Computinga spectacular program or system failure.
  11. [Slang.]a powerful automobile or other vehicle.

  1. to hurl bombs at or drop bombs upon, as from an airplane;
    bombard:The enemy planes bombed the city.
  2. to explode by means of a bomb or explosive.
  3. Computingto deliberately cause (a computer system) to fail with a program written for the purpose.

  1. to hurl or drop bombs.
  2. to explode a bomb or bombs.
  3. [Slang.]to be or make a complete failure, esp. to fail to please or gain an audience;
    flop (sometimes fol. by out):His last play bombed on Broadway. The business bombed out with a $25,000 debt.
  4. Computing(of a computer program or system) to fail spectacularly.
  5. [Informal.]to move very quickly:They came bombing through here on their motorcycles at 2 a. m.
bombable, adj. 
  • Greek bómbos
  • Latin bombus a booming sound
  • Spanish bomba (de fuego) ball (of fire), akin to bombo drum
  • 1580–90; 1960–65 for def. 17; earlier bom(b)e

Collins Concise English Dictionary © HarperCollins Publishers::
bomb /bɒm/ n
  1. a hollow projectile containing an explosive, incendiary, or other destructive substance, esp one carried by aircraft
  2. (as modifier): bomb disposal, a bomb bay
  3. (in combination): a bombload, bombproof
  4. any container filled with explosive: a car bomb, a letter bomb
  5. the bomba hydrogen or atomic bomb considered as the ultimate destructive weapon
  6. slang something excellent: it's the bomb
  7. a round or pear-shaped mass of volcanic rock, solidified from molten lava that has been thrown into the air
  8. a container for radioactive material, applied therapeutically to any part of the body: a cobalt bomb
  9. Brit slang a large sum of money (esp in the phrase make a bomb)
  10. US Canadian slang a disastrous failure: the new play was a total bomb
  11. Austral NZ slang an old or dilapidated motorcar
  12. a very long high pass
  13. (in rugby union) another term for up-and-under
  14. like a bombBrit NZ informal with great speed or success; very well (esp in the phrase go like a bomb)
  1. to attack with or as if with a bomb or bombs; drop bombs (on)
  2. (intr; often followed by off, along, etc) informal to move or drive very quickly
  3. (intransitive) slang to fail disastrously; be a flop
Etymology: 17th Century: from French bombe, from Italian bomba, probably from Latin bombus a booming sound, from Greek bombos, of imitative origin; compare Old Norse bumba drum
'bomb' also found in these entries (note: many are not synonyms or translations):
Report an inappropriate ad.