| achtjährig | eight-year-old eight-year |
| Achtjährige | eight-year-old |
| Achtjähriger | eight-year-old |
| achtzigjährig | octogenarian |
| achtarmig | octopod eight-armed |
| achtbändig | in eigth volumes |
| mehrjährig | hardy |
| Achtzigjährige | octogenarian |
| Nachfahrin | descendant |
| acht Uhr | eight o'clock |
| achtsilbig | octasyllabic |
| machtgierig | power-hungry |
| Nachtmahr | nightmare |
| achtbar | reputable |
| achteckig | octagonal |
| achtseitig | octagonal eight-sided octahedral eight-page |
| achtzig | eighty |
| Lichtjahr | light year lightyear |
| einjährig | yearlong |
| zweijährig | biennial |