WINDMILL is a playable word

windmill Scrabble® Dictionary

verb
windmilled, windmilling, windmills
to rotate solely under the force of a passing airstream
28 Playable Words can be made from "WINDMILL"
   2-Letter Words (4 found)
   3-Letter Words (10 found)
   4-Letter Words (13 found)
   8-Letter Words (1 found)