MUNNION is a playable word

munnion Scrabble® Dictionary

noun
pl. munnions
a muntin
28 Playable Words can be made from "MUNNION"
   2-Letter Words (11 found)
   3-Letter Words (9 found)
   4-Letter Words (4 found)
   5-Letter Words (3 found)
   7-Letter Words (1 found)