| verb | establish or strengthen as with new evidence or facts “his story confirmed my doubts” |
| verb | give evidence for |
| verb | support with evidence or authority or make more certain or confirm “The stories and claims were born out by the evidence” |
| confirmative | adjective | serving to support or corroborate |
| confirmatory | adjective | serving to support or corroborate |
| confirmation | noun | information that confirms or verifies |
| corroborative | adjective | serving to support or corroborate |
| corroboratory | adjective | serving to support or corroborate |
| corroboration | noun | confirmation that some fact or statement is true through the use of documentary evidence |
| sustainable | adjective | capable of being sustained |
| substantiative | adjective | serving to support or corroborate |
| substantiation | noun | additional proof that something that was believed (some fact or hypothesis or theory) is correct |
| support | noun | documentary validation |
| affirmable | adjective | capable of being affirmed or asserted |
| affirmation | noun | a judgment by a higher court that the judgment of a lower court was correct and should stand |
| validatory | adjective | serving to support or corroborate |
| validation | noun | the cognitive process of establishing a valid proof |