| Blutsbruder | blood brother |
| Blutsauger | gadfly vampire sucker bloodsucker |
| Blutsbande | blood |
| Blutspender | blood donor |
| Blutspende | blood donation |
| Bootsbauer | boatbuilder |
| Bundesbruder | fraternity brother |
| Bettelbruder | beggar |
| Saufbruder | drinking buddy |
| Blaublüter | blue blood |
| Bluescreen | blue screen of death |
| Blutfehde | vendetta |
| Bluträcher | blood avenger |
| Blutsaugerin | bloodsucker |
| Blutschuld | bloodguilt |
| Blutsfreund | blood relation |
| Blutsfreundin | blood relation |
| Blutstrom | bloodstream |
| blutbesudelt | sanguinolent |
| Blutbad | bloodbath massacre carnage |