WINDOW is a playable word

window Scrabble® Dictionary

verb
windowed, windowing, windows
to provide with a window (an opening in a wall to admit light and air)
27 Playable Words can be made from "WINDOW"
   2-Letter Words (9 found)
   3-Letter Words (10 found)
   4-Letter Words (5 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)