Rebel  —n. 1 person who fights against, resists, or refuses allegiance to, the established government. 2 person or thing that resists authority or control. —attrib. Adj. 1 rebellious. 2 of rebels. 3 in rebellion. —v. (-ll-; us -l-) (usu. Foll. By against) 1 act as a rebel; revolt. 2 feel or display repugnance. [latin: related to *re-, bellum war]