rebel

(n) "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
greyback, Johnny, Johnny Reb, Reb,
(n) a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions) freedom fighter, insurgent, insurrectionist,
(n) someone who exhibits great independence in thought and action maverick,

(v) take part in a rebellion; renounce a former allegiance rise up, arise, rise,
(v) break with established customs renegade,

rise up arise rise greyback Johnny Johnny Reb Reb freedom fighter insurgent insurrectionist renegade maverick

rebus rebut

rebellion rebellious rebelliously rebelliousness