In dictionaries:
Delta Sigma Theta
Delta Sigma Theta Sorority, Inc. is a historically African American sorority.
Delta Sigma Phi
Delta Sigma Phi, commonly known as Delta Sig, is a fraternity established in 1899 at The City College of New York.
Delta Sigma Pi
(officially the International Fraternity of Delta Sigma Pi, Inc.) a coeducational professional business fraternity and one of the largest in the United States.
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