| Answer | Crossword Clue |
|---|---|
| QED | Letters at the end of a proof |
| QED | Abbr. at the end of a proof |
| QED | What a prof might write at the end of a proof |
| PPS | Letters at the end of a letter |
| XOXO | Letters at the end of a love letter |
| PTO | Letters at the end of a page, sometimes |
| PPS | Letters at the end of a letter, perhaps |
| PPS | Letters at the end of some letters |
| ETA | Letter at the end of three other letters |
| TGIF | Letters that come at the end of the week |
| ZEDS | Letters at the end of the O.E.D. |
