BACKSTAB is a playable word

backstab Scrabble® Dictionary

verb
backstabbed, backstabbing, backstabs
to attack or betray behind one's back
71 Playable Words can be made from "BACKSTAB"
   2-Letter Words (7 found)
   3-Letter Words (22 found)
   5-Letter Words (10 found)
   6-Letter Words (3 found)
   8-Letter Words (1 found)