BLUEBOOKS is a playable word

bluebook Scrabble® Dictionary

noun
pl. bluebooks
an examination booklet
140 Playable Words can be made from "BLUEBOOKS"
   2-Letter Words (10 found)
   3-Letter Words (31 found)
   6-Letter Words (10 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)