GRAINER is a playable word

grainer Scrabble® Dictionary

noun
pl. grainers
one that grains
96 Playable Words can be made from "GRAINER"
   2-Letter Words (12 found)
   3-Letter Words (31 found)
   5-Letter Words (12 found)
   6-Letter Words (10 found)
   7-Letter Words (5 found)