BL

1. A breech-loading weapon
2. A Bill of lading
3. abbreviation for Bootloader
4. Bachelor of Laws
5. Backhoe loader
6. Bahamut Lagoon, a Japanese role-playing video game
7. Bakerloo line
8. banglalink
9. Banja Luka
10. Barrister-at-Law
11. Barry Letts
12. Basel-Landschaft
13. Basel-Landschaft (Basel-Country)
14. Beautiful Liar
15. Bell Labs
16. Big Love
17. Bionicle Legends, a series of science-fiction novels based on Lego toys
18. Bitter lemon
19. Björn Lundén
20. BL (logic)
21. BL in braille 
22. BL Publishing
23. BL register
24. BL!NDMAN
25. BL!SSS Magazine
26. Black Lagoon
27. Black Library
28. Black light
29. Blacklist
30. Blake Lewis
31. Bleeding Love
32. Blessed
33. Blocking List
34. Blockland, a game made by Step 1:Games
35. Blood!
36. Bloodlust
37. Bobby Lashley
38. Bodleian Library
39. Body language
40. Bolivia
41. Bong Load Custom Records
42. Border Liners Orienteering
43. Borderline lepromatous leprosy
44. Boston Legal
45. Bourland & Leverich
46. Boys' Latin School of Maryland
47. Boys' Love
48. Brett Lider
49. British Leyland
50. Brock Lesnar
51. Bruce Lee
52. Bud Light
53. Business Line
54. Buzz Lightyear
55. ECW Barely Legal
56. Lytvyn Bloc
57. Saint Barthélemy 
58. The Biggest Loser
59. The Brian Lehrer Show
60. The Brisbane Lions
61. The British Library