| Altersunterschied | age difference |
| Zeitunterschied | time difference |
| Höhenunterschied | drop |
| Unterschied | difference |
| Musterunterschrift | specimen signature |
| Alternsforschung | gerontology |
| herunterschalten | downshift |
| Altenkirchen | Altenkirchen |
| Alterserscheinung | symptom of old age |
| Altersschwäche | old age |
| Altersweisheit | wisdom of old age |
| alternieren | alternate |
| alternierend | alternating |
| Elternsprache | baby-talk caretaker speech mother's speech motherese nursery language parental speech |
| Afterforscher | pseudoscientist |
| Herunterfahren | shutdown |
| herunterfahren | shut down turn off |
| Mutterunternehmen | parent company |
| Sternenschiff | starship |
| heruntermachen | vilify |