Bomb \bomb\, v.

1. attack with bombs; "The Americans bombed Dresden"
2. fail to get a passing grade; "She studied hard but failed nevertheless"; "Did I fail the test?" [syn: fail, flunk] [ant: pass]
3. throw bombs at [syn: bombard]
4. [Cf. boom.] To sound; to boom; to make a humming or buzzing sound. [Obs.] --B. Jonson

Bomb \bomb\, n. [F. bombe bombshell, fr. L. bombus a humming or buzzing noise, Gr. ?.]

1. (Mil.) an explosive device fused to denote under specific conditions; a shell, esp. a spherical shell, like those fired from mortars
2. An event that fails badly or is totally ineffectual; "the first experiment was a real turkey"; "the meeting was a dud as far as new business was concerned" [syn: turkey, dud]
3. A great noise; a hollow sound. [Obs.]

   A pillar of iron . . . which if you had struck, would make . . . a great bomb in the chamber beneath. --Bacon

4. (Comp.) General synonym for crash; "Don't run Empire with less than 32K stack, it'll bomb."
5. A mass of lava of a spherical or pear shape [syn. volcanic bomb]

``I noticed volcanic bombs.'' --Darwin