| Solution | Length | |
|---|---|---|
| 3 letters | ||
| vow | 3 | |
| say | 3 | |
| 4 letters | ||
| aver | 4 | |
| word | 4 | |
| avow | 4 | |
| 5 letters | ||
| deign | 5 | |
| grant | 5 | |
| STOOP | 5 | |
| imply | 5 | |
| swear | 5 | |
| stand | 5 | |
| prove | 5 | |
| troth | 5 | |
| vouch | 5 | |
| 6 letters | ||
| bestow | 6 | |
| accede | 6 | |
| affirm | 6 | |
| assert | 6 | |
| attest | 6 | |
| assure | 6 | |
| saying | 6 | |
| stance | 6 | |
| say-so | 6 | |
| 7 letters | ||
| certify | 7 | |
| concede | 7 | |
| support | 7 | |
| testify | 7 | |
| witness | 7 | |
| confirm | 7 | |
| BESPEAK | 7 | |
| involve | 7 | |
| protest | 7 | |
| promise | 7 | |
| suggest | 7 | |
| warrant | 7 | |
| 8 letters | ||
| evidence | 8 | |
| swear to | 8 | |
| 9 letters | ||
| guarantee | 9 | |
| UNDERTAKE | 9 | |
| predicate | 9 | |
| utterance | 9 | |
| statement | 9 | |
| establish | 9 | |
| 10 letters | ||
| profession | 10 | |
| UNDERWRITE | 10 | |
| CONDESCEND | 10 | |
| 11 letters | ||
| PROPOSITION | 11 | |
| acknowledge | 11 | |
| demonstrate | 11 | |
| PREDICATION | 11 | |
| 12 letters | ||
| protestation | 12 | |
| PROCLAMATION | 12 | |
| 13 letters | ||
| pronouncement | 13 | |