PROOFER is a playable word

proofer Scrabble® Dictionary

noun
pl. proofers
one that proofs
45 Playable Words can be made from "PROOFER"
   2-Letter Words (10 found)
   3-Letter Words (17 found)
   4-Letter Words (9 found)
   5-Letter Words (4 found)
   6-Letter Words (3 found)
   7-Letter Words (2 found)