COOKBOOKS is a playable word

cookbook Scrabble® Dictionary

noun
pl. cookbooks
a book of recipes
37 Playable Words can be made from "COOKBOOKS"
   2-Letter Words (4 found)
   3-Letter Words (9 found)
   4-Letter Words (12 found)
   5-Letter Words (6 found)
   6-Letter Words (2 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)