Professional Fraternities And Sororities, including: Alpha Kappa Psi, Theta Tau, Sigma Phi Delta, Alpha Phi Omega, Delta Omicron Sigma, Delta Sigma ... Pi, Alpha Gamma Rho, Phi Delta Chi, Kappa Psi

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More info: Professional fraternities, in the North American fraternity system, are organizations whose primary purpose is to promote the interests of a particular profession and whose membership is restricted to students in that particular field of professional education or study. This may be contrasted with service fraternities and sororities, whose primary purpose is community service, and general or social fraternities and sororities, whose primary purposes are generally aimed towards some other aspect, such as the development of character, friendship, leadership, or literary ability.