IPA: /ˈvɛrɪfaɪər/
KK: /ˈvɛrɪfaɪər/
A person or thing that checks or confirms the accuracy or truth of something.
The verifier checked the documents to ensure everything was correct.
Verifier → It is formed from "verus" (meaning true) and "-fier" (from the Latin "facere", meaning to make or do). The word "verifier" means one who makes something true or confirms its truth.
Think of someone who makes sure something is 'true' ('verus') — that's why a verifier is someone who confirms the truth.