proof Synonyms - page 2

smoking gun cogent evidence test copy burglarproof watertight litmus test test case object lesson verification artificial insemination airtight authentication tryout stereo exam credentials leakproof boy scout gawker bulletproof trial impression sign absoluteness certitude clue comprobation confirmation confirmer corroboration credential data definiteness demonstrate empiricism evidentiary evincement experimentation certification certificate bombproof actuality affidavit affirmation angelophany apodixis argument assay assuredness attestation audition