The crossword solution for the term 'SORORITY's counterpart, for short' is FRAT, which stands for fraternity. Fraternities and sororities are social organizations found on college campuses that are typically single-sex and have a strong focus on brotherhood or sisterhood. Fraternities are traditionally male-only organizations, while sororities are traditionally female-only organizations. Both fraternities and sororities often have a philanthropic mission and host social events.