noun (n)

• a large sandwich made of a long crusty roll 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 United States(noun.food)

  Synonym:
  bomber, grinder, hero, hero sandwich, hoagie, hoagy, italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep
  

  source: wordnet30