| Answer | Crossword Clue |
|---|---|
| PSI | Trident-shaped letter, in Rome |
| PSI | Trident-shaped letter |
| PSI | Trident-shaped Greek letter |
| PSI | Fraternity letter shaped like a trident |
| TSLOT | Letter-shaped track in metalworking |
| TSLOT | Letter-shaped opening in some pistons |
| TSLOT | Letter-shaped opening in a machine shop |
