WORD MEANING
Captcha meaning
KAP-chuh · noun
A test used on websites to determine whether the user is human and prevent automated access by bots.
See all 16 words from the September 23, 2026 puzzle →Other meanings
An acronym for 'Completely Automated Public Turing test to tell Computers and Humans Apart'.
A type of challenge-response test involving distorted text, images, or puzzles.
A security measure to protect online forms from spam and abuse.
Commonly used in web security contexts; also appears as a brand name for specific implementations.
Examples
I had to complete a CAPTCHA to prove I wasn't a robot.
The website uses CAPTCHA to prevent automated spam submissions.