| Solution | Length | |
|---|---|---|
| 2 letters | ||
| on | 2 | |
| UP | 2 | |
| 3 letters | ||
| apb | 3 | |
| nap | 3 | |
| tip | 3 | |
| the | 3 | |
| sos | 3 | |
| red | 3 | |
| 4 letters | ||
| doze | 4 | |
| apbs | 4 | |
| keen | 4 | |
| warn | 4 | |
| wise | 4 | |
| atip | 4 | |
| stay | 4 | |
| NERD | 4 | |
| fast | 4 | |
| 5 letters | ||
| alarm | 5 | |
| alive | 5 | |
| amber | 5 | |
5 | ||
| awake | 5 | |
| warns | 5 | |
| siren | 5 | |
| sharp | 5 | |
| ready | 5 | |
| quick | 5 | |
| agile | 5 | |
| zippy | 5 | |
| WATCH | 5 | |
| aware | 5 | |
| brisk | 5 | |
| swift | 5 | |
| smart | 5 | |
| 6 letters | ||
| slater | 6 | |
| tipoff | 6 | |
| active | 6 | |
| signal | 6 | |
| tocsin | 6 | |
| nimble | 6 | |
| speedy | 6 | |
| lively | 6 | |
| prompt | 6 | |
| notify | 6 | |
| 7 letters | ||
| prudent | 7 | |
| whisper | 7 | |
| headsup | 7 | |
| quivive | 7 | |
| startle | 7 | |
| summary | 7 | |
| tip-off | 7 | |
| whistle | 7 | |
| wakeful | 7 | |
| ROUSING | 7 | |
| spoiler | 7 | |
| 8 letters | ||
| notifies | 8 | |
| prepared | 8 | |
| KEENEYED | 8 | |
| openeyed | 8 | |
| punctual | 8 | |
| spirited | 8 | |
| vigilant | 8 | |
| threaten | 8 | |
| WATCHFUL | 8 | |
| ontiptoe | 8 | |
| redflags | 8 | |
| 9 letters | ||
| sprightly | 9 | |
| ontheball | 9 | |
| vivacious | 9 | |
| receptive | 9 | |
| REGARDFUL | 9 | |
| WIDEAWAKE | 9 | |
| sleepless | 9 | |
| 10 letters | ||
| wide awake | 10 | |
| ononestoes | 10 | |
| SHARP EYED | 10 | |
| RESPONSIVE | 10 | |
| unskillful | 10 | |
| unblinking | 10 | |