| Blaue Banane | Blue Banana |
| blaue Karte | blue card |
| Blaue Blume | blue flower |
| blaues Auge | black eye |
| Blaumann | overalls |
| blaue Stunde | blue hour |
| Lausanne | Lausanne |
| Blutsbande | blood |
| Gemüsebanane | plantain |
| Zierbanane | ensete |
| Blaubart | Bluebeard |
| Blauer Riese | blue giant |
| Blauzahn | Bluetooth |
| Blauzunge | blue-tongue lizard |
| blauer Brief | pink slip |
| Blasebalg | bellows |
| Blasentang | bladderwrack |
| Blattnase | leaf-nosed bat leafnose bat |
| Blattranke | leaf tendril |
| Blaualge | cyanobacteria cyanophyta |