Definition

A type of challenge-response test used to determine whether the user is human or a computer program, often involving identifying distorted text or images.

Example

I had to complete a captcha before I could submit the form online.

Conversation

Have you ever struggled with a captcha while trying to log in?

Oh, all the time! They can be so annoying.

Right? Sometimes I wonder if they actually help prevent bots.

I think they do, but they make us jump through hoops!

Synonyms & Antonyms

Root Explanation

**Captcha** → The word 'captcha' is a blend of 'completely automated public Turing test to tell computers and humans apart'. It is derived from the acronym 'CAPTCHA', which itself is a backronym formed from the initial letters of the phrase. The term describes a challenge-response test used to determine whether the user is human or a computer program.

Memory Tip

Think of 'CAPTCHA' as a test designed to distinguish between humans and computers, helping you remember that it is a tool to verify human identity.

Visually Confused Words