| untertags | day daytime during |
| untertan | subject |
| Untertan | subject |
| Unterhaus | lower chamber lower house House of Commons |
| Unterlage | base pad underlay document paper root-stock |
| Untertasse | saucer |
| unterwegs | on the way on the road |
| Unterlagen | document |
| Unterstand | cabana refuge |
| Untertanin | subject |
| Unterton | subharmonic |
| Unterzug | girder |
| Unterarm | forearm |
| Unterart | subspecies |
| Unterbau | foundation |
| Untergang | downfall sinking decline |
| Unterhalt | alimony upkeep |
| Unterlauf | lower reaches |
| Unterzahl | minority |
| unterhalb | below beneath |