GRIBBLE is a playable word

gribble Scrabble® Dictionary

noun
pl. gribbles
a marine isopod
52 Playable Words can be made from "GRIBBLE"
   2-Letter Words (7 found)
   3-Letter Words (19 found)
   4-Letter Words (15 found)
   5-Letter Words (7 found)
   6-Letter Words (2 found)
   7-Letter Words (2 found)