CAPTCHAS is a playable word

captcha Scrabble® Dictionary

noun
pl. captchas
a test that must be done to access a website
87 Playable Words can be made from "CAPTCHAS"
   2-Letter Words (8 found)
   3-Letter Words (27 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)