MONOLITH is a playable word

monolith Scrabble® Dictionary

noun
pl. monoliths
a large block of stone
108 Playable Words can be made from "MONOLITH"
   2-Letter Words (16 found)
   5-Letter Words (5 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)