| Solution | Length | |
|---|---|---|
| 3 letters | ||
| fix | 3 | |
| wax | 3 | |
| man | 3 | |
| 4 letters | ||
| wane | 4 | |
| seat | 4 | |
| whet | 4 | |
| rise | 4 | |
| stay | 4 | |
| prop | 4 | |
| 5 letters | ||
| spike | 5 | |
| asset | 5 | |
| ampup | 5 | |
| might | 5 | |
| sinew | 5 | |
| power | 5 | |
| forte | 5 | |
| tense | 5 | |
| prove | 5 | |
| swell | 5 | |
| brace | 5 | |
| widen | 5 | |
| ready | 5 | |
| steel | 5 | |
| 6 letters | ||
| secure | 6 | |
| anneal | 6 | |
| triple | 6 | |
| propup | 6 | |
| spread | 6 | |
| verify | 6 | |
| temper | 6 | |
| settle | 6 | |
| ratify | 6 | |
| uphold | 6 | |
| beefup | 6 | |
| steady | 6 | |
| ramify | 6 | |
| 7 letters | ||
| recruit | 7 | |
| BEEF UP | 7 | |
| promote | 7 | |
| support | 7 | |
| prepare | 7 | |
| augment | 7 | |
| probate | 7 | |
| potency | 7 | |
| empower | 7 | |
| toughen | 7 | |
| warrant | 7 | |
| sharpen | 7 | |
| restore | 7 | |
| tighten | 7 | |
| bolster | 7 | |
| stiffen | 7 | |
| sustain | 7 | |
| nourish | 7 | |
| ensteel | 7 | |
| refresh | 7 | |
| confirm | 7 | |
| shoreup | 7 | |
| fortify | 7 | |
| 8 letters | ||
| step up | 8 | |
| garrison | 8 | |
| enervate | 8 | |
| sanction | 8 | |
| embolden | 8 | |
| shore up | 8 | |
| redouble | 8 | |
| VITALIZE | 8 | |
| soup up | 8 | |
| snowball | 8 | |
| condense | 8 | |
| intrench | 8 | |
| shoot up | 8 | |
| validate | 8 | |
| 9 letters | ||
| undergird | 9 | |
| establish | 9 | |
| reinforce | 9 | |
| screw up | 9 | |
| 10 letters | ||
| INVIGORATE | 10 | |
| perpetuate | 10 | |
| supplement | 10 | |
| 11 letters | ||
| proliferate | 11 | |
| corroborate | 11 | |
| stabilitate | 11 | |
| 12 letters | ||
| substantiate | 12 | |
| 15 letters | ||
| fysicalphitness | 15 | |