Definition of authenticity noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌɔːθenˈtɪsəti//
; NAmE NAmE//ˌɔːθenˈtɪsəti//
[uncountable] Honest
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the quality of being genuine or true The authenticity of the letter is beyond doubt. A sentry checked the ID card’s authenticity then activated the electronic turnstile. See related entries: HonestExtra examples Despite its certificate of authenticity, the painting was found to be a fake. Some have cast doubt on the authenticity of the official version of events. There has been some debate over the authenticity of his will. a document of doubtful authenticity
See the Oxford Advanced American Dictionary entry: authenticity