MULLER is a playable word

muller Scrabble® Dictionary

noun
pl. mullers
a grinding implement
25 Playable Words can be made from "MULLER"
   2-Letter Words (7 found)
   3-Letter Words (9 found)
   4-Letter Words (7 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)