SHRILLS is a playable word

shrill Scrabble® Dictionary

adjective
shriller, shrillest
having a high-pitched and piercing quality
(adverb) shrilly
verb
shrilled, shrilling, shrills
to utter a shrill sound
27 Playable Words can be made from "SHRILLS"
   2-Letter Words (5 found)
   3-Letter Words (6 found)
   4-Letter Words (8 found)
   5-Letter Words (5 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)