| confirm(support, maintain, back, verify, validate) |
| contend(verb, support, maintain, back, declare) |
| corroborate(verb, support, maintain, back, declare) |
| cosign(verb, support, maintain, back, declare) |
| debunk(verb, idea, confirm, prove, affirm) |
| declare(verb, support, maintain, back, confirm) |
| get behind(verb, expression, phrasal verb, support, maintain) |
| give an affidavit(verb, expression, idiom, support, maintain) |
| give assurance(verb, expression, support, maintain, back) |
| incarnate(verb, idea, confirm, prove, affirm) |
| manifest(verb, idea, confirm, prove, affirm) |
| okay(verb, support, maintain, back, declare) |
| personify(verb, idea, confirm, prove, affirm) |
| predicate(verb, support, maintain, back, declare) |
| profess(verb, support, maintain, back, declare) |
| prove(support, maintain, back, confirm, verify) |
| put forth(verb, expression, phrasal verb, support, maintain) |
| ratify(verb, support, accept, agree, idea) |
| reify(verb, idea, confirm, prove, affirm) |
| rubber-stamp(verb, support, maintain, back, declare) |