ECONOBOXES is a playable word

econobox Scrabble® Dictionary

noun
pl. econoboxes
a small economical car
113 Playable Words can be made from "ECONOBOXES"
   2-Letter Words (12 found)
   6-Letter Words (4 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)
   10-Letter Words (1 found)