SCOUR is a playable word

scour Scrabble® Dictionary

verb
scoured, scouring, scours
to cleanse or polish by hard rubbing
22 Playable Words can be made from "SCOUR"
   2-Letter Words (4 found)
   3-Letter Words (10 found)
   4-Letter Words (7 found)
   5-Letter Words (1 found)