The "Greek system" refers to the network of social organizations known as fraternities and sororities that are commonly found on college and university campuses in the United States. These organizations are often identified by their Greek letters and focus on fostering brotherhood or sisterhood, community service, and academic support among their members. Members of the Greek system typically participate in various social events, philanthropic activities, and leadership development programs. Each fraternity or sorority has its own unique values, traditions, and membership requirements, contributing to a diverse range of experiences within the Greek life community.