| Umluft | circulating air recirculated air secondary air |
| Raumluft | indoor air room air |
| Umlauf | circulation orbital motion paronychia |
| Umlaut | umlaut vowel mutation |
| Umluftgerät | Recirculation unit recirculated air unit |
| Luft | sky atmosphere air |
| Abluft | extract air extracted air |
| Kluft | cleft fissure joint gulf gap rift garb uniform |
| Zugluft | draught draft |
| Zuluft | additional air supply air |
| Umlage | apportionment |
| Umland | hinterland |
| Umlaufen | circulation |
| umlaufen | circulate knock over orbit |
| Umluftkammer | air-recirculation chambers convection chamber |
| umlügen | bearing |
| Atemluft | breathing air respiratory air |
| Bluff | bluff |
| behuft | hoofed |
| Duft | aroma fragrance perfume |