hero

a man distinguished by exceptional courage and nobility and strength; "RAF pilots were the heroes of the Battle of Britain"

the principal character in a play or movie or novel or poem

someone who fights for a cause

Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)

(classical mythology) a being of great strength and courage celebrated for bold exploits; often the offspring of a mortal and a god

(Greek mythology) priestess of Aphrodite who killed herself when her lover Leander drowned while trying to swim the Hellespont to see her

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