noun

• Somebody who possesses great bravery and carries out extraordinary or noble deeds.
• A role model.
• The protagonist in a work of fiction.
• (poker) The current player, especially an hypothetical player for example and didactic purposes. Compare: villain (“any opponent player”). Not to be confused with hero call (“a weak call against a supposed bluff”).
• (New York) A large sandwich made from meats and cheeses; a hero sandwich.
• (film, photography, chiefly attributive) The product chosen from several candidates to be photographed, as in food advertising, or with props used in a movie.
• (web design) The eye-catching top portion of a web page, sometimes including a hero image; the portion above the fold.
• (Greek mythology) Any of a number of legendary men and women, including the priestess loved by Leander.
• (rare) A female given name from Ancient Greek of English-speakers.