Fraternity, as defined in the provided answer, means the spirit of brotherhood. This refers to a sense of camaraderie, solidarity, and mutual support among individuals or groups. It emphasizes the idea of treating others like true brothers, with kindness, respect, and a willingness to help. Fraternity promotes a sense of belonging and inclusiveness, fostering unity and a strong bond within a community or organization. It signifies the importance of building relationships based on trust, compassion, and empathy. While options 2, 3, and 4 are related to important societal values, they do not accurately capture the specific meaning of fraternity. Therefore, the correct answer is option 1, Spirit of brotherhood.