Related Clues:
- Frat letter, perhaps
- ''Sweetheart of Sigma ___''
- X, at times
- Fraternity character
- Greek's X
- Letter from college?
- When repeated, pretentious
- Acupuncturist's life force
- Air density symbol
- White Sox city, on scoreboards
- P, in the Greek alphabet
- "I, Robot" actor McBride
- Part of the Greek alphabet
- A fraternity chapter
- Frat-house letter