| corroborate(verb, state, show, sign, confirm) |
| stand behind(verb, expression, support, maintain, praise) |
| validate(verb, approve, sanction, recommend, corroborate) |
| vouch(verb, support, guarantee) |
| attest to |
| back up(verb, expression, phrasal verb, support, praise) |
| bear witness(verb, expression, state, show, sign) |
| ensure(verb, support, maintain, secure, approve) |
| praise(verb, support, favor, back, approve) |
| sanction(verb, support, praise, favor, back) |
| sponsor(verb, support, help, promote, back) |
| stand up for(verb, expression, idiom, phrasal verb, support) |
| swear to(verb, expression, support, appear, guarantee) |
| underwrite(verb, support, praise, favor, back) |
| uphold(verb, support, show, praise, favor) |
| witness(verb, support, show, maintain, praise) |
| acclaim(verb, praise, favor, back, approve) |
| advance(verb, praise, favor, back, approve) |
| advise(verb, praise, favor, back, approve) |
| advocate(verb, support, praise, favor, back) |