A critic of the government can be referred to as a dissident, an opposition leader, a rebel, or a protester. These terms all describe individuals who publicly oppose government policies or actions. A dissident may challenge the government's authority or ideological principles, while an opposition leader may represent a political party or group that opposes the ruling party. Rebels and protesters may take more active forms of opposition, such as demonstrations or even armed rebellion. Regardless of the term used, those who act as critics of the government play an important role in maintaining a balance of power and keeping government officials accountable to the people they serve.