authentication.

The process of checking that a person, object or message is genuine or has the claimed identity or origin.

Use it for

Words that belong together

• document authentication
• user authentication

On the page

Document authentication established the letter’s origin, not the truth of every statement in it.

User authentication confirmed access credentials before the system applied permission rules.

Usage notes

Primary category: analysis / argumentation / evidence. Forms: Usually uncountable; use a plural for distinct instances or types only where natural. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: evidence, argumentation, evaluation, qualification. Disciplines: reasoning, research, essay writing. Commonness: moderately common.