n. 1. a military aircraft that drops bombs during flight. [ WordNet 1.5 ]
2. a large sandwich on a long crusty roll that is split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the US.
Syn. -- grinder, hero, hero sandwich, hoagie, hoagy, Cuban sandwich, Italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep. [ WordNet 1.5 ]
3. a person who drops bombs or plants and explodes bombs, especially surreptitously. [ PJC ]
4. a bomber jacket. [ PJC ]