Rebel definition

adjective

(1) Used by Northerners of Confederate soldiers

"The rebel yell"

noun

(2) A person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)

(3) Someone who exhibits great independence in thought and action

(4) `Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms

verb

(5) Take part in a rebellion; renounce a former allegiance

(6) Break with established customs