The term "Underground Movement" refers to organized efforts that operate outside of mainstream society, often in secrecy. These movements can arise for various reasons, including political dissent, social change, or cultural expression. They may involve activists, artists, or community members who seek to challenge established norms or authorities. Historically, underground movements have played significant roles in various contexts, such as the Civil Rights Movement in the United States or the French Resistance during World War II. These groups often use alternative methods of communication and organization to evade detection and promote their causes effectively.