letter bomb   (TTS Sound)

The letter_bomb has 2 Senses.

• letter bomb, parcel bomb, package bomb
• 手紙爆弾
• a thin explosive device inside an envelope or package and detonated when opened
• 封筒または小包の中の薄い爆発物で開封されると起爆する

• letter bomb
• 手紙爆弾
• send an explosive to; "The Unabomber letter bombed a number of individuals and institutions"
• 爆薬を投ずる