1. back room a room located in the rear of an establishment
  2. backroom the meeting place of a group of leaders who make their decisions via private negotiations
  3. backroom boy an expert adviser involved in making important decisions but usually lacking official status
  4. backwards in a manner or order or direction the reverse of normal
  5. lachrymose showing sorrow
  6. achromous having no color
  7. bichrome having two colors
  8. buckram a coarse cotton fabric stiffened with glue
  9. backwoods a remote and undeveloped area
  10. backcross mate a hybrid of the first generation with one of its parents
  11. bookworm someone who spends a great deal of time reading
  12. packhorse a workhorse used as a pack animal
  13. take arms commence hostilities
  14. beggarwoman a woman who is a beggar
  15. bathroom a room (as in a residence) containing a bathtub or shower and usually a washbasin and toilet
  16. pogrom organized persecution of an ethnic group, especially Jews
  17. ballroom large room used mainly for dancing
  18. Bromus a genus of grasses of the family Gramineae
  19. buckaroo local names for a cowboy
  20. beach wormwood herb with greyish leaves found along the east coast of North America; used as an ornamental plant