authentication
/ɑˌθɛntɪˈkeɪʃn̩/ noun C1- Something which validates or confirms the authenticity of something; or the process of doing so. · document authentication· strong authentication
- Proof of identity required by a user to log on to some network or access some resource. · digital authentication· Online banking uses two-factor authentication.
- A hallmark or assay-mark on a piece of metalwork.
Plural authentications
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