STOOK is a playable word

stook Scrabble® Dictionary

verb
stooked, stooking, stooks
to stack (as bundles of grain) upright in a field for drying
16 Playable Words can be made from "STOOK"
   2-Letter Words (4 found)
   3-Letter Words (5 found)
   4-Letter Words (5 found)
   5-Letter Words (2 found)