1. bungle - To execute clumsily.
2. buoyancy - Power or tendency to float on or in a liquid or gas.
3. buoyant - Having the power or tendency to float or keep afloat.
4. bureau - A chest of drawers for clothing, etc.
5. bureaucracy - Government by departments of men transacting particular branches of public business.
6. burgess - In colonial times, a member of the lower house of the legislature of Maryland or Virginia.
7. burgher - An inhabitant, citizen or freeman of a borough burgh, or corporate town.
8. burnish - To make brilliant or shining.
9. bursar - A treasurer.
10. bustle - To hurry.
11. butt - To strike with or as with the head, or horns.
12. butte - A conspicuous hill, low mountain, or natural turret, generally isolated.
13. buttress - Any support or prop.
14. by-law - A rule or law adopted by an association, a corporation, or the like.
15. cabal - A number of persons secretly united for effecting by intrigue some private purpose.