| Blackbox | black box |
| Blackfoot | Blackfoot |
| Blackout | blackout |
| Placebo | placebo |
| Backbone | backbone |
| Backbord | port larboard |
| backbord | port |
| Blockbau | log cabin |
| Blackbeard | Blackbeard |
| Blanka | Blanche |
| Blastom | blastoma |
| Blähton | exclay |
| blasto- | blasto- |
| blattlos | leafless |
| Blabla | blah bushwa hot air twaddle |
| Blackberry | Blackberry |
| Blackjack | blackjack black jack |
| Blank | blank |
| blank | shiny bare sheer broke skint |
| Blankett | blank form |