1. blue flag a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally
  2. blue fig Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit
  3. black flag a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship
  4. blue-black of black tinged with blue
  5. blue-lilac of lavender tinged with blue
  6. blue funk a state of nervous depression
  7. battle flag a flag that leads troops into battle
  8. bluffly in a blunt direct manner
  9. bullfrog largest North American frog
  10. yellow flag common yellow-flowered iris of Europe and North Africa, naturalized in United States and often cultivated
  11. blow fly large usually hairy metallic blue or green fly
  12. blowfly large usually hairy metallic blue or green fly
  13. blue-violet of violet tinted with blue
  14. blue law a statute regulating work on Sundays
  15. belly flop a dive in which the abdomen bears the main force of impact with the water
  16. belly-flop dive so that one hits the water with one's belly
  17. believing the cognitive process that leads to convictions
  18. Pluvialis golden plovers
  19. leaflike resembling a leaf
  20. blue fleabane widespread weed with pale purple-blue flowers

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