Definition

A person or tool that verifies the authenticity of something, ensuring it is genuine or valid.

Example

The authenticator confirmed that the document was legitimate before it was submitted.

Conversation

Have you ever used an authenticator for your online accounts?

Yeah, I started using one recently, and it's so much safer.

I think I need to get one too; it's probably a good idea.

Definitely! It adds an extra layer of security.

Synonyms & Antonyms

Root Explanation

Authenticator → It is formed from "authent" (from Greek "authentēs", meaning one who acts independently or a master) and "-icator" (from Latin "-icator", meaning one who does or makes). The word "authenticator" refers to one who verifies or confirms the authenticity of something.

Memory Tip

Think of someone acting as a 'master' ('authent') who 'verifies' ('-icator') the truth of something — that's why an authenticator is someone who confirms authenticity.

Visually Confused Words