1. blue book a register of persons who are socially prominent
  2. playbook a book containing the scripts of one or more dramatic plays
  3. bell book a logbook in which all orders concerning the main engines of a ship are recorded
  4. blowback the backward escape of gases and unburned gunpowder after a gun is fired
  5. blue pike variety inhabiting the Great Lakes
  6. pull back pull back or move away or backward
  7. rule book a collection of rules or prescribed standards on the basis of which decisions are made
  8. playback the act of reproducing recorded sound
  9. play back reproduce (a recording) on a recorder
  10. black book a list of people who are out of favor
  11. pullback the act of pulling back
  12. blue-black of black tinged with blue
  13. blue jack small salmon of northern Pacific coasts and the Great Lakes
  14. blue baby an infant born with a bluish color
  15. blue joke an indelicate joke
  16. bluebell one of the most handsome prairie wildflowers having large erect bell-shaped bluish flowers; of moist places in prairies and fields from eastern Colorado and Nebraska south to New Mexico and Texas
  17. blue bull large Indian antelope
  18. blue bugle upright rhizomatous perennial with bright blue flowers
  19. bluetick a very fast American hound; white mottled with bluish grey
  20. balibago shrubby tree widely distributed along tropical shores

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