OVERFILLS is a playable word

overfill Scrabble® Dictionary

verb
overfilled, overfilling, overfills
to fill to overflowing
254 Playable Words can be made from "OVERFILLS"
   2-Letter Words (17 found)
   7-Letter Words (6 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)