LACUNAR is a playable word

lacunar Scrabble® Dictionary

noun
pl. lacunars or lacunaria
a ceiling with recessed panels
55 Playable Words can be made from "LACUNAR"
   2-Letter Words (8 found)
   3-Letter Words (14 found)
   4-Letter Words (17 found)
   5-Letter Words (9 found)
   6-Letter Words (5 found)
   7-Letter Words (2 found)