Related Clues:

• Fraternity letter
• Greek letter
• Sorority letter
• Frat letter
• Greek consonant
• Greek S
• ___ Alpha Epsilon fraternity
• Standard deviation symbol
• Symbol of conductivity
• Science society ___ Xi
• ___ Society (super-high I.Q. group)
• Letter after rho
• Rho follower
• Calculus symbol
• Character in "The Iliad"