1. blue book a register of persons who are socially prominent
  2. blue goose North American wild goose having dark plumage in summer but white in winter
  3. play-box a box for a child's toys and personal things
  4. playbox a box for a child's toys and personal things
  5. blue bugle upright rhizomatous perennial with bright blue flowers
  6. playbook a book containing the scripts of one or more dramatic plays
  7. blue pike variety inhabiting the Great Lakes
  8. bell book a logbook in which all orders concerning the main engines of a ship are recorded
  9. blue fox a variety of Arctic fox having a pale grey winter coat
  10. blue cheese cheese containing a blue mold
  11. pillbox a small case for holding pills
  12. blowback the backward escape of gases and unburned gunpowder after a gun is fired
  13. big bucks a large sum of money (especially as pay or profit)
  14. blue blood a member of the aristocracy
  15. Blaberus giant cockroaches
  16. blinks small Indian lettuce of northern regions
  17. blue lotus blue Egyptian lotus: held sacred by the Egyptians
  18. rule book a collection of rules or prescribed standards on the basis of which decisions are made
  19. blue joke an indelicate joke
  20. callipygous pertaining to or having finely developed buttocks

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.