DOORKNOB is a playable word

doorknob Scrabble® Dictionary

noun
pl. doorknobs
a handle for opening a door
49 Playable Words can be made from "DOORKNOB"
   2-Letter Words (7 found)
   3-Letter Words (16 found)
   4-Letter Words (19 found)
   5-Letter Words (6 found)
   8-Letter Words (1 found)