1.
bomb; explosive device
A weapon designed to explode and cause damage. Can refer to various types of explosive devices.
2.
bombshell; shocking revelation
Figuratively, something shocking or sensational, especially news or information.
Related Words
Related:
爆発 (explosion)
Related:
原爆 (atomic bomb)
Compare:
手榴弾 (hand grenade)
Compare:
爆発物 (explosives)