OVERBILLS is a playable word

overbill Scrabble® Dictionary

verb
overbilled, overbilling, overbills
to bill too much
263 Playable Words can be made from "OVERBILLS"
   2-Letter Words (16 found)
   7-Letter Words (6 found)
   8-Letter Words (2 found)
   9-Letter Words (1 found)