A revolutionist is an individual who actively advocates for or participates in significant political, social, or economic change, often through revolutionary means. They seek to overthrow existing systems or structures that they perceive as unjust or oppressive. Revolutionists can emerge from various ideologies and movements, ranging from political to cultural, and their actions can lead to transformative societal shifts. Examples include figures like Che Guevara and Rosa Parks, who sought to challenge the status quo in their respective contexts.