Authentication

//ɔːˌθɛntɪˈkeɪʃn̩// noun

noun ·Uncommon ·College level

Definitions

Noun
  1. 1
    Something which validates or confirms the authenticity of something; or the process of doing so. countable, uncountable

    "document authentication"

  2. 2
    validating the authenticity of something or someone wordnet
  3. 3
    Proof of identity required by a user to log on to some network or access some resource. countable, uncountable

    "digital authentication"

  4. 4
    a mark on an article of trade to indicate its origin and authenticity wordnet
  5. 5
    A hallmark or assay-mark on a piece of metalwork. countable, uncountable

Synonyms

All synonyms
acceptanceaffirmationapprobationapprovalassay markassay-mark

Example

More examples

"Modern authentication techniques have come a long way since the days of simple spoken watchwords."

Etymology

From authenticate + -ation.

Related phrases

two-factor authenticationassay mark

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.