GHOSTS is a playable word

ghost Scrabble® Dictionary

verb
ghosted, ghosting, ghosts
to haunt
39 Playable Words can be made from "GHOSTS"
   2-Letter Words (7 found)
   3-Letter Words (11 found)
   4-Letter Words (14 found)
   5-Letter Words (6 found)
   6-Letter Words (1 found)