TRILLS is a playable word

trill Scrabble® Dictionary

verb
trilled, trilling, trills
to sing or play with a vibrating effect
33 Playable Words can be made from "TRILLS"
   2-Letter Words (5 found)
   3-Letter Words (9 found)
   4-Letter Words (12 found)
   5-Letter Words (6 found)
   6-Letter Words (1 found)