1. blue jean (usually plural) close-fitting trousers of heavy denim for manual work or casual wear
  2. bludgeon a club used as a weapon
  3. Belgian of or relating to or characteristic of Belgium or the Belgian people
  4. blue jay common jay of eastern North America
  5. blue jet atmospheric discharges (lasting 10 msec) bursting from the tops of giant storm clouds in blue cones that widen as they flash upward
  6. blue moon a long time
  7. blue jack small salmon of northern Pacific coasts and the Great Lakes
  8. blue joke an indelicate joke
  9. bluefin largest tuna
  10. bludgeoner an assailant who uses a bludgeon
  11. polygene a gene that by itself has little effect on the phenotype but which can act together with others to produce observable variations
  12. bluegill important edible sunfish of eastern and central United States
  13. pole bean a climbing bean plant that will climb a wall or tree or trellis
  14. Boolean of or relating to a combinatorial system devised by George Boole that combines propositions with the logical operators AND and OR and IF THEN and EXCEPT and NOT
  15. pledge a binding commitment to do or give or refrain from something
  16. blue jessamine climber of southern United States having bluish-purple flowers
  17. bulginess the property possessed by a rounded convexity
  18. legion a large military unit
  19. blue-green of a bluish shade of green
  20. plunge dash violently or with great speed or impetuosity