Enter a clue or pattern or both:
The Clue
Greek letter (3 letter answer)
The Answer
PHI
Tags
Notes
The answer PHI is seen frequently, appearing about once every 160 puzzles.
Related Clues
21st letter
___ Beta Kappa
Beta preceder
The Eagles, on a scoreboard
Fraternity character
Honorary letter
Key letter
Key letter?
Key opener?
Key word
Letter on a key
Upsilon follower
Fluidity symbol, in mechanics
Honor society letter
Honor society opening
Symbol of the golden ratio
Greek symbol for the golden ratio
Letter before Beta in a society's name
Definition
PHI as a noun:
1. the 21st letter of the Greek alphabet