Webster's English Dictionary

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rebellion

re.bel.lion \ri-'bel-y*n\ n 1: opposition to one in authority or dominance  
   2a: open defiance of or resistance to an established government  2b: an 
   instance of such defiance or resistance MUTINY: REBELLION implies open, 
   organized, and often armed resistance to authority; REVOLUTION applies to a 
   successful rebellion resulting in a change usu. in government; UPRISING 
   implies no more than an effort at rebellion; REVOLT and INSURRECTION imply 
   an armed uprising that quickly fails or succeeds; MUTINY applies to group 
   insubordination or insurrection esp. against maritime authority SYN syn 
   REVOLUTION, UPRISING, REVOLT, INSURRECTION,