1. blue chip a blue poker chip with the highest value
  2. blue-chip extremely valuable
  3. block up render unsuitable for passage
  4. blue crab bluish edible crab of Atlantic and Gulf Coasts of North America
  5. bell shape the shape of a bell
  6. bleacher a worker who bleaches (cloth or flour etc.)
  7. bleached having lost freshness or brilliance of color
  8. bleach make whiter or lighter
  9. black bee dark-colored ill-tempered honeybee supposedly of German origin
  10. black pea perennial of Europe and North Africa
  11. blueish of the color intermediate between green and violet
  12. blucher a high shoe with laces over the tongue
  13. biochip a microchip that uses tiny strands of DNA to latch onto and quickly recognize thousands of genes at a time; intended for use in a biological environment
  14. blue cat a large catfish of the Mississippi valley
  15. bluecoat a person dressed all in blue (as a soldier or sailor)
  16. blue cheese cheese containing a blue mold
  17. Baluchi an Iranian language spoken in Pakistan and Iran and Afghanistan and Russia and the Persian gulf
  18. bleak unpleasantly cold and damp
  19. Blucher Prussian general who is remembered for his leadership in the wars against Napoleon (1742-1819)
  20. blackcap chickadee having a dark crown