1. (Myth.) An illustrious man, supposed to be exalted, after death, to a place among the gods; a demigod, as Hercules. 2. A man of distinguished valor or enterprise in danger, or fortitude in suffering; a prominent or central personage in any remarkable action or event; hence, a great or illustrious person. Each man is a hero and oracle to somebody. Emerson. 3. The principal personage...