Authenticity
/ˌɔθəˈntɪsɪti/
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Definition
(noun) The quality of being genuine or not corrupted from the original, of having the same origin (or attribution, commitment, intention, etc.) as claimed.
Sentence Examples
I doubt the authenticity of the document.
The authenticity of the documents was checked before publishing them.
CEFR Practice Quiz
The ____ of the antique furniture was confirmed by the specialist.