| Solution | Length | |
|---|---|---|
| 3 letters | ||
| due | 3 | |
| 4 letters | ||
| care | 4 | |
| heed | 4 | |
| taxi | 4 | |
| 5 letters | ||
| stage | 5 | |
| 6 letters | ||
| rigour | 6 | |
| remark | 6 | |
| regard | 6 | |
| effort | 6 | |
| 7 letters | ||
| respect | 7 | |
| thought | 7 | |
| stamina | 7 | |
| 8 letters | ||
| activity | 8 | |
| industry | 8 | |
| tenacity | 8 | |
| 9 letters | ||
| attention | 9 | |
| vehemence | 9 | |
| stability | 9 | |
| ASSIDUITY | 9 | |
| 10 letters | ||
| resolution | 10 | |
| 11 letters | ||
| SCHOLARSHIP | 11 | |
| application | 11 | |
| 12 letters | ||
| stubbornness | 12 | |
| SEDULOUSNESS | 12 | |
| thoroughness | 12 | |
| 13 letters | ||
| staying-power | 13 | |
| attentiveness | 13 | |
| assiduousness | 13 | |
| PREOCCUPATION | 13 | |
| 14 letters | ||
| relentlessness | 14 | |
| 15 letters | ||
| industriousness | 15 | |