SUBUNITS is a playable word

subunit Scrabble® Dictionary

noun
pl. subunits
a unit that is a part of a larger unit
85 Playable Words can be made from "SUBUNITS"
   2-Letter Words (10 found)
   3-Letter Words (28 found)
   6-Letter Words (2 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)