| Solution | Length | |
|---|---|---|
| 3 letters | ||
| nag | 3 | |
| cue | 3 | |
| 4 letters | ||
| echo | 4 | |
| warn | 4 | |
| memo | 4 | |
| hint | 4 | |
| note | 4 | |
| 6 letters | ||
| advise | 6 | |
| revoke | 6 | |
| rebuke | 6 | |
| recall | 6 | |
| retain | 6 | |
| prompt | 6 | |
| 7 letters | ||
| censure | 7 | |
| suggest | 7 | |
| reprove | 7 | |
| counsel | 7 | |
| caution | 7 | |
| 8 letters | ||
| forewarn | 8 | |
| remember | 8 | |
| dissuade | 8 | |
| 9 letters | ||
| recollect | 9 | |
| 10 letters | ||
| retrospect | 10 | |
| 11 letters | ||
| aidememoire | 11 | |
| 18 letters | ||
| refresh the memory | 18 | |