MATCHBOXES is a playable word

matchbox Scrabble® Dictionary

noun
pl. matchboxes
a small box
484 Playable Words can be made from "MATCHBOXES"
   2-Letter Words (32 found)
   3-Letter Words (101 found)
   7-Letter Words (8 found)
   8-Letter Words (4 found)
   9-Letter Words (1 found)
   10-Letter Words (1 found)