CAVERN is a playable word

cavern Scrabble® Dictionary

verb
caverned, caverning, caverns
to hollow out
55 Playable Words can be made from "CAVERN"
   2-Letter Words (8 found)
   3-Letter Words (18 found)
   4-Letter Words (17 found)
   5-Letter Words (9 found)
   6-Letter Words (3 found)