(n)evidence, groundsyour basis for belief or disbelief; knowledge on which to base belief“the evidence that smoking causes lung cancer is very compelling”
(v)attest, certify, manifest, demonstrate, evidenceprovide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes“His high fever attested to his illness”, “The buildings in Rome manifest a high level of architectural sophistication”, “This decision demonstrates his sense of fairness”
(v)testify, bear witness, prove, evidence, showprovide evidence for“The blood test showed that he was the father”, “Her behavior testified to her incompetence”