| Blaumiese | blues |
| Blaumeise | blue tit |
| Blaumerle | blue rock thrush |
| Blaubeere | blueberry bilberry |
| Blaubirke | blue birch |
| Blaukissen | aubrieta |
| Blaupause | blueprint |
| blamieren | disgrace disgrace oneself make a fool of oneself |
| Blasdüse | tuyere |
| Blauer Riese | blue giant |
| Blaufisch | bluefish |
| Blaustern | squill |
| Blauzunge | blue-tongue lizard |
| Bläue | blueness |
| Blamage | disgrace |
| Blase | bladder blister bubble |
| Blasius | Blaise Blase Blaze |
| Blattnase | leaf-nosed bat leafnose bat |
| Blaualge | cyanobacteria cyanophyta |
| Blauhelm | blue beret |