CAUSTICS is a playable word

caustic Scrabble® Dictionary

noun
pl. caustics
a corrosive substance
71 Playable Words can be made from "CAUSTICS"
   2-Letter Words (10 found)
   3-Letter Words (23 found)
   5-Letter Words (13 found)
   6-Letter Words (2 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)