| Unterzahl | minority |
| Überzahl | majority superior number |
| Unterzeile | subheadline |
| Unterzug | girder |
| untertan | subject |
| Untertan | subject |
| Unterarm | forearm |
| Unterart | subspecies |
| Unterbau | foundation |
| Untergang | downfall sinking decline |
| Unterhalt | alimony upkeep |
| Unterhaus | lower chamber lower house House of Commons |
| Unterlage | base pad underlay document paper root-stock |
| Unterlauf | lower reaches |
| unterhalb | below beneath |
| untertags | day daytime during |
| Interval | range |
| Intervall | interval |
| internal | internal |
| Minderzahl | minority |