LISPS is a playable word

lisp Scrabble® Dictionary

verb
lisped, lisping, lisps
to pronounce the letters {it}s{/it} and {it}z{/it} imperfectly
17 Playable Words can be made from "LISPS"
   2-Letter Words (4 found)
   3-Letter Words (6 found)
   4-Letter Words (5 found)
   5-Letter Words (2 found)