WINDMILLING is a playable word

windmill Scrabble® Dictionary

verb
windmilled, windmilling, windmills
to rotate solely under the force of a passing airstream
67 Playable Words can be made from "WINDMILLING"
   2-Letter Words (5 found)
   3-Letter Words (16 found)
   5-Letter Words (1 found)
   8-Letter Words (3 found)
   11-Letter Words (1 found)