| Unterbühne | mezzanine |
| kunterbunt | colorful |
| unterrühren | stir mix in |
| Untermenge | subset |
| Unterroutine | subroutine |
| Unterstand | cabana refuge |
| Unterton | subharmonic |
| Unterzeile | subheadline |
| Unterzug | girder |
| untergehend | setting |
| untertan | subject |
| Untertan | subject |
| Süntelbuche | Dwarf Beech |
| Unterbau | foundation |
| Unterbauch | lower abdomen underbelly |
| Unterboden | subsoil |
| Unterführung | underpass subway |
| Untergang | downfall sinking decline |
| Untergebene | subordinate servant |
| Untergrenze | lower limit |