TRILLING is a playable word

trill Scrabble® Dictionary

verb
trilled, trilling, trills
to sing or play with a vibrating effect
48 Playable Words can be made from "TRILLING"
   2-Letter Words (5 found)
   3-Letter Words (11 found)
   4-Letter Words (19 found)
   5-Letter Words (4 found)
   6-Letter Words (4 found)
   7-Letter Words (4 found)
   8-Letter Words (1 found)