WINDFALL is a playable word

windfall Scrabble® Dictionary

noun
pl. windfalls
a sudden and unexpected gain
79 Playable Words can be made from "WINDFALL"
   2-Letter Words (13 found)
   3-Letter Words (28 found)
   5-Letter Words (4 found)
   6-Letter Words (2 found)
   8-Letter Words (1 found)