DEFECT is a playable word

defect Scrabble® Dictionary

verb
defected, defecting, defects
to desert an allegiance
26 Playable Words can be made from "DEFECT"
   2-Letter Words (6 found)
   3-Letter Words (10 found)
   4-Letter Words (8 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)