CAPTCHA is a playable word

captcha Scrabble® Dictionary

noun
pl. captchas
a test that must be done to access a website
37 Playable Words can be made from "CAPTCHA"
   2-Letter Words (6 found)
   3-Letter Words (13 found)
   4-Letter Words (13 found)
   5-Letter Words (4 found)
   7-Letter Words (1 found)