| letter bomb | (n) a thin explosive device inside an envelope or package and detonated when opened, Syn. parcel bomb, package bomb |
| letter bomb | (v) send an explosive to, Example: The Unabomber letter bombed a number of individuals and institutions |
| letter-bomb | |
| 手紙爆弾 | [てがみばくだん, tegamibakudan] (n) letter bomb [Add to Longdo] |