| Solution | Length | |
|---|---|---|
| 3 letters | ||
| psa | 3 | |
| wit | 3 | |
| 4 letters | ||
| idea | 4 | |
| wits | 4 | |
| eegs | 4 | |
| mind | 4 | |
| loaf | 4 | |
| 5 letters | ||
| easya | 5 | |
| skull | 5 | |
| tripe | 5 | |
| ratio | 5 | |
| genii | 5 | |
| sense | 5 | |
| robot | 5 | |
| 6 letters | ||
| tongue | 6 | |
| reason | 6 | |
| smarts | 6 | |
| psyche | 6 | |
| genius | 6 | |
| 7 letters | ||
| cranium | 7 | |
| stomach | 7 | |
| 8 letters | ||
| geniuses | 8 | |
| 9 letters | ||
| smartness | 9 | |
| reasoning | 9 | |
| einsteins | 9 | |
| 10 letters | ||
| intellects | 10 | |
| mastermind | 10 | |
| sweetbread | 10 | |
| graymatter | 10 | |
| GREYMATTER | 10 | |
| 11 letters | ||
| RATIONALITY | 11 | |
| GREY MATTER | 11 | |
| 13 letters | ||
| understanding | 13 | |
| 15 letters | ||
| mentaltelepathy | 15 | |