authenticity
noun
VERB + AUTHENTICITY cast doubt on, doubt Some journalists have cast doubt on the authenticity of the official version of events.| check, test | confirm, establish, prove, verify
PHRASES a certificate of authenticity Despite its certificate of authenticity, the painting was found to be a fake.| a debate over the authenticity of sth There has been some debate over the authenticity of his will.| of doubtful authenticity a document of doubtful authenticity
