What is another word for CAPTCHA?
Pronunciation: [kˈapt͡ʃə] (IPA) 
Captcha, an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart", is a security measure used on websites to prevent automated bots from spamming or performing malicious activities. Captcha typically involves recognizing and typing distorted characters or solving a visual puzzle to prove that a user is human. Synonyms for the term Captcha include image verification, human verification, anti-spam test, security checkpoint, and bot filter. Different websites may use different variations of these tests to ensure that their users are real and to maintain the security of their platform. While these tests can sometimes be frustrating for users, they are a necessary measure to keep websites secure.
