| Answer | Crossword Clue |
|---|---|
| OPT | Participate, with "in" |
| OPT | Choose to participate, with "in" |
| SAT | Failed to participate in (with "out") |
| SAT | Failed to participate in, with "out" |
| SITIN | Participate (with "on"). |
| INON | Participate, with "be" |
| SATIT | Didn't participate, with "out" |
| OPT | Don't participate, with "out" |
| OPT | Not participate, with "out" |
| OPTS | Declines to participate, with "out" |
| OPTS | Chooses not to participate, with "out" |
| OPT | Choose not to participate, with "out" |
| OPTEDIN | Chose to participate, as with an e-mail list |
