an explosive device fused to explode under specific conditions
"The security team had to evacuate the building after discovering a suspicious time bomb left in the lobby."
strong sealed vessel for measuring heat of combustion
"The chemist carefully placed the sample into the bomb to measure its exact heat of combustion."
An explosive device used or intended as a weapon.
"The old missile silos were secretly converted into underground bunkers designed to house the nation's remaining atomic bombs."
The atomic bomb.
The atomic bomb; the capacity to launch a nuclear attack.
To attack using one or more bombs; to bombard.
"The city was devastated when enemy planes bombed the industrial district early in the morning."
Great, awesome.
"The new roller coaster was a bomb; everyone who rode it screamed in delight."