Related Clues:
- P-like Greek letters
- Letters after pis
- They follow pis
- Campus letters
- P's, to Pythagoras
- Letters from louse unopened
- "100" symbols, in Greek numerals
- P-like letters
- Greek letters after nus
- P's on sorority sweaters
- Greek letters after pis
- Frat jacket P's
- They follow the nus
- Omicron preceders
- They precede sigmas