| Blutwurz | tormentil common tormentil |
| Blutwurst | black pudding blood sausage |
| Bleiwurz | plumbago |
| blutarm | bloodless |
| Blutdurst | bloodthirstiness |
| Bluter | haemophiliac hemophiliac bleeder |
| Bluthund | Bloodhound |
| Blutruf | blood curse |
| Blutung | bleeding haemorrhage |
| Pestwurz | butterbur |
| Hauswurz | houseleek |
| Braunwurz | figwort |
| Bärwurz | baldmoney spignel meu |
| Blutstrom | bloodstream |
| Blücher | blucher |
| Bludenz | Bludenz |
| Bluetooth | Bluetooth |
| Blut | blood |
| Blutbad | bloodbath massacre carnage |
| Blutbahn | circulatory system |