Merriam-Webster's Collegiate® Dictionary, 11th Edition
REBEL
I. adjective
Etymology: Middle English, from Anglo-French, from Latin rebellis, from re- + bellum war, from Old Latin duellum
Date: 14th century
1. opposing or taking arms against a government or ruler, of or relating to rebels , disobedient , rebellious ,
II. noun
Date: 14th century
one who rebels or participates in a rebellion,
III. intransitive verb (rebelled; rebelling)
Date: 14th century
1. to oppose or disobey one in authority or control, to re noun ce and resist by force the authority of one's government,
2. to act in or show opposition or disobedience , to feel or exhibit anger or revulsion