GRINDER is a playable word

grinder Scrabble® Dictionary

noun
pl. grinders
one that grinds
74 Playable Words can be made from "GRINDER"
   2-Letter Words (9 found)
   3-Letter Words (23 found)
   4-Letter Words (19 found)
   5-Letter Words (13 found)
   6-Letter Words (8 found)
   7-Letter Words (2 found)