Answer: PHI
PHI is a crossword puzzle answer that we have spotted 125 times.
- ___ Beta Kappa
- Fraternity letter
- Key opener?
- Key letter?
- Key letter
- Letter before Beta in a society's name
- Honor society letter
- Sorority letter
- Letter after upsilon
- Upsilon follower
- Symbol of electric flux
- ___ phenomenon (optical illusion)
- Dr. ___
- College letter
- Letter voiced by a Greek giant?
- 21st Greek letter
- Fraternal letter
- Greek letter
- Frat letter
- Upsilon's successor
- Upsilon's follower
- Fourth-to-last Greek letter
- Sixers, on a scoreboard
- Honor society character
- Symbol of latitude
- Symbol used in spherical coordinates
- Greek letter that represents the golden ratio
- Follower of upsilon
- Letter that resembles the "y" of Disney's signature
- With 66-Down, certain honor society member
- Greek letter after upsilon
- Scholastic society letter
- __ Beta Kappa
- Letter from Pharos
- Chi follows it
- __ Bete
- Euler's __ function
- N.L. East team, on scoreboards
- Letter on a key
- Key word
- Honor-society letter
- Fraternity letter, perhaps
- Part of PBK
- Common fraternity letter
- Greek F
- 14th after 40-Down
- The golden ratio
- ___ Beta Kappa (honor society)
- Golden ratio symbol
- Sorority character
- Greek letter associated with the 33-Across
- ___ Bete
- Euler's ___ function
- Greek consonant
- Two before kappa on a key
- Letter from Athens
- Symbol for the golden ratio
- Greek symbol for the golden ratio
- 21st letter
- Eagles, on scoreboards
- Beta preceder
- F in Greek
- Chi preceder
- Chi lead-in
- It looks like an omicron with an iota through it
- Letter seen twice in Philadelphia
- Fraternity character
- Letter between upsilon and chi
- Frat character
- Another fraternity letter
- Symbol of the golden ratio
- Letter before 35-Across
- Letter on an honor society key
- WAS opponent, in the NL East
- NYG NFL rival
- The Eagles, on a scoreboard
- Letter in some fraternity names
- Letter before chi
- Beta Kappa
- Frat house letter
- Greek letter that's also an M.L.B. city on scoreboards
- "Fie" homophone
- N.L. East team
- One of five rhyming Greek letters
- NL East team
- Electric flux symbol
- ___ Bete (honor society member, informally)
- Honor society leader?
- The Eagles, for short
- Letter of the Greek alphabet
- 21st in a series of 24
- Letter on some gold keys
- Honorary letter
- Campus letter
- Preceder of chi
- Letter in an honor society's name
- "Beta Kappa" head
- #21 of 24
- College key letter
- 21st of 24
- The Eagles, on scoreboards
- 21st chapter of a frat
- Eagles, for short
- Pa. MLB city
- 76ers, on scoreboards
- Greek symbol in the Golden Ratio
- Apt Greek letter for a Penn frat name
- NBA Sixers, on scoreboards
- Letter two after tau
- Zeta ___ Beta
- The Sixers or Eagles, on scoreboards
- It's written as a vertical line bisecting a circle
- The Flyers or 76ers, on scoreboards
- The 76ers, on scoreboards
- The Sixers, on scoreboards
- The Eagles or Flyers, on scoreboards
- City home to Independence Hall (Abbr.)
- Gritty's team, on scoreboards
- ___ Beta Kappa (academic honor society)
- Flyers, on scoreboards
- Greek letter used to represent magnetic flux
- Preantepenultimate letter
- Apt Greek letter for a University of Pennsylvania fraternity
- Upsilon neighbor
- Greek letter that sounds like "fie"