BANKBOOK is a playable word

bankbook Scrabble® Dictionary

noun
pl. bankbooks
a depositor's book
43 Playable Words can be made from "BANKBOOK"
   2-Letter Words (9 found)
   3-Letter Words (14 found)
   4-Letter Words (14 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)
   8-Letter Words (1 found)