| Abluft | extract air extracted air |
| Abluftfahne | plume |
| Ablauf | procedure action activity process sequence queue downpipe drainage outflow outlet port end of a term expiration of a deadline expiration of a time limit expiration of the validity |
| Ablaut | ablaut |
| Abluftgerät | exhaust air unit |
| Ablufthaube | extractor hood |
| Abluftkamin | exhaust (air) stack vent stack |
| Abluftkanal | exhaust duct exhaust shaft vitiated air duct |
| Bluff | bluff |
| Blunt | blunt |
| Blut | blood |
| blutt | broke |
| Luft | sky atmosphere air |
| Kluft | cleft fissure joint gulf gap rift garb uniform |
| Umluft | circulating air recirculated air secondary air |
| Zuluft | additional air supply air |
| Ablage | storage |
| Ablass | drain indulgence |
| Ablegat | ablegate |
| Abluftanlage | exhaust air plant |