| Answer | Crossword Clue |
|---|---|
| UPSILON | Letter before phi |
| CHI | Letter after phi |
| CHI | Letter between phi and psi |
| OMEGA | Letter after phi, chi, psi |
| CHI | Greek letter between phi and psi |
| BETA | Fraternity letter between phi and kappa |
| RHO | Letter used with theta and phi to represent spherical coordinates |
