Related Clues:
- Particle displacement symbols, in physics
- Long E's, in Greek
- Letters from overseas
- Hellenic letters
- H H H
- Brits' thank-yous
- Intro-level class teachers, often
- A prof. may have them
- Some sorority women
- Xis' predecessors
- AAA
- Airport info, for short
- Cockpit guesses, for short
- Letters from Crete
- Greek vowels