実証じっしょう Common Noun Irregular Noun Transitive Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb surunouns which may take the genitive case particle 'no' transitive verb intransitive verb demonstration;verification;substantiation;actual proof この理論の根拠をこれから実証しよう。 I am going to substantiate this theory.