There are several synonyms for the term "join the opposition," including "become a dissenter," "defect to the other side," "switch allegiance," "turn traitor," "become a rebel," "join the resistance," "take up arms against," "stand against," "oppose the establishment," and "rise up against authority." Each of these phrases implies a willingness to challenge the prevailing order and a readiness to take action against those in power. Whether driven by a desire for justice or a thirst for power, those who join the opposition often seek to shape the world around them in a different way.