Meaning of “bomb” - Learner’s Dictionary

bomb

noun [ C ] us uk /bɒm/
Sunday's bomb killed 19 people.The recent bomb attacks have scared away the tourists.The bomb ripped through the building, killing six people.The bomb exploded in a flash of yellow light.The building was torn apart by the bomb blast.

B1 a weapon that explodes and causes damage:

The bomb destroyed several office buildings in the city.
→ See also atomic bomb

(Definition of “bomb noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)