1. blue peter a blue flag with a white square in the center indicates that the vessel is ready to sail
  2. bluster be gusty, as of wind
  3. blue elder shrub or small tree of western United States having white flowers and blue berries; fruit used in wines and jellies
  4. blue star subshrubs of southeastern United States forming slow-growing clumps and having blue flowers in short terminal cymes
  5. blubberer someone who sniffles and weeps with loud sobs
  6. blunder an embarrassing mistake
  7. blustery blowing in violent and abrupt bursts
  8. puppeteer one who operates dolls or marionettes
  9. baluster one of a number of closely spaced supports for a railing
  10. bluebottle an annual Eurasian plant cultivated in North America having showy heads of blue or purple or pink or white flowers
  11. blueberry any of numerous shrubs of the genus Vaccinium bearing blueberries
  12. blister an elevation of the skin filled with fluid
  13. blackwater any of several human or animal diseases characterized by dark urine resulting from rapid breakdown of red blood cells
  14. blubber an insulating layer of fat under the skin of some animals
  15. bespatter spot, splash, or soil
  16. blighter a boy or man
  17. blotter absorbent paper used to dry ink
  18. blue story an indelicate joke
  19. bolometer an instrument that measures heat radiation
  20. blooper an embarrassing mistake