GILLER is a playable word

giller Scrabble® Dictionary

noun
pl. gillers
one that gills
30 Playable Words can be made from "GILLER"
   2-Letter Words (5 found)
   3-Letter Words (12 found)
   4-Letter Words (7 found)
   5-Letter Words (4 found)
   6-Letter Words (2 found)