FERRET is a playable word

ferret Scrabble® Dictionary

verb
ferreted, ferreting, ferrets
to search out by careful investigation
30 Playable Words can be made from "FERRET"
   2-Letter Words (6 found)
   3-Letter Words (10 found)
   4-Letter Words (10 found)
   5-Letter Words (3 found)
   6-Letter Words (1 found)