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 or upper class
  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