| justify(verb, maintain, defend, explain, prove) |
| vindicate(verb, support, maintain, favor, prove) |
| clear(verb, support, maintain, favor, sustain) |
| exculpate(verb, support, maintain, favor, substantiate) |
| explain(verb, support, defend, substantiate, validate) |
| make good(verb, expression, support, favor, sustain) |
| rationalize(verb, support, maintain, favor, substantiate) |
| rehabilitate(verb, maintain, defend, uphold, prove) |
| warrant(verb, support, defend, prove, substantiate) |
| abide by |
| absolve(verb, support, maintain, favor, sustain) |
| account for |
| acquit(verb, support, maintain, favor, sustain) |
| act(verb, take, meet, complete, accomplish) |
| act up to(expression, idiom) |
| adhere to |
| advocate(verb, support, favor, defend, substantiate) |
| alibi(verb, support, favor, sustain, confirm) |
| answer for(verb, expression, favor, substantiate, legitimize) |
| apologize for(verb, expression, favor, substantiate, legitimize) |