Fraternity letters are symbols used to represent Greek-letter organizations, such as fraternities and sororities. The crossword solutions for the term 'fraternity letter' include Phi (3 letters), Psi (3 letters), Kappa (5 letters), CHI (3 letters), DELTA (5 letters), Epsilon (7 letters), SIGMA (5 letters), Rho (3 letters), Theta (5 letters), Zeta (4 letters), OMEGA (5 letters), TAU (3 letters), Eta (3 letters), and IOTA (4 letters), Omicron (7 letters). These letters are used to identify members of a particular fraternity or sorority and are often seen on clothing, jewelry, and other items associated with the organization.