Definition of rebel in the Definitions.net dictionary. Meaning of rebel . What does rebel mean ? Information and translations of rebel in the most comprehensive dictionary definitions resource on the web. A rebel is a person who resists or defies rules or norms or rises up against the powers that be .In its more serious sense, a rebel is a revolutionary trying to overthrow a government. When you rebel against your parents by dyeing your hair green and staying out without calling, you are acting in a way that questions both their authority and their rules about what is right and acceptable. A rebel is someone who fights authority. The story of a rebel often finds its way into books and movies. Learn the meaning of rebel as a noun and a verb, with synonyms and example sentences. Find out how to pronounce rebel in British and American English, and explore its origin and usage.