noun (n)

• a man distinguished by exceptional courage and nobility and strength(noun.person)

  Example:
  RAF pilots were the heroes of the Battle of Britain.
  

  source: wordnet30
• the principal character in a play or movie or novel or poem(noun.cognition)

  source: wordnet30
• someone who fights for a cause(noun.person)

  Synonym:
  champion, fighter, paladin
  

  source: wordnet30
• Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)(noun.person)

  Synonym:
  hero of alexandria, heron
  

  source: wordnet30
• (classical mythology) a being of great strength and courage celebrated for bold exploits; often the offspring of a mortal and a god(noun.person)

  source: wordnet30
• (Greek mythology) priestess of Aphrodite who killed herself when her lover Leander drowned while trying to swim the Hellespont to see her(noun.person)

  source: wordnet30
• 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, cuban sandwich, grinder, hero sandwich, hoagie, hoagy, italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep
  

  source: wordnet30
• An illustrious man, supposed to be exalted, after death, to a place among the gods; a demigod, as Hercules.(noun)

  source: webster1913