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Authenticate

usgb/ɔːˈθentɪkeɪt/Volume
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Proof RequiredPlay
The action of authenticating always requires evidence to prove authenticity. SlideThe museum authenticated the ancient sculpture by carbon-dating it.
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Authority MattersPlay
Usually, an expert or someone in authority authenticates items to give credibility. SlideThe signature was authenticated by a renowned handwriting analyst.
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Not Always VisiblePlay
Authentication can involve identifying things not immediately visible, like historical significance. SlideHe authenticated the coin's origin with records from the medieval period.