1. blue fig Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit
  2. bluefin largest tuna
  3. blue flag a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally
  4. blue fox a variety of Arctic fox having a pale grey winter coat
  5. prolific intellectually productive
  6. bluefish bluish warm-water marine food and game fish that follow schools of small fishes into shallow waters
  7. bluewing American teal
  8. blueing a process that makes something blue (or bluish)
  9. blue funk a state of nervous depression
  10. pelvic of or relating to the pelvis
  11. bluff a high steep bank
  12. blue pike variety inhabiting the Great Lakes
  13. blue sage sage of western North America to Central America having violet-blue flowers; widespread in cultivation
  14. blue sky the sky as viewed during daylight
  15. bluetick a very fast American hound; white mottled with bluish grey
  16. bluffer a person who tries to bluff other people
  17. blue-sky without immediate commercial value
  18. bluffly in a blunt direct manner
  19. bluing a process that makes something blue (or bluish)
  20. blue book a register of persons who are socially prominent