Why does the noun Filter have the article der?
Nouns formed from verbs with -er ending are mostly masculine. Look at the bolded -er in the noun above — that suffix is the giveaway.
Examples
der Lehrer (teacher), der Fahrer (driver), der Arbeiter (worker), der Schreiber (writer), der Spieler (player), der Maler (painter)
Exceptions
das Fenster (window), das Wasser (water), die Butter (butter), die Mutter (mother)
Declension table for German noun Filter
How it changes across the four cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | der Filter | ein Filter | — |
| Akkusativ | den Filter | einen Filter | — |
| Dativ | dem Filter | einem Filter | — |
| Genitiv | des Filters | eines Filters | — |
| Nominativ | die Filter | — Filter | — |
| Akkusativ | die Filter | — Filter | — |
| Dativ | den Filtern | — Filtern | — |
| Genitiv | der Filter | — Filter | — |
Examples in context
Real sentences using Filter in different cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | — | ||
| Akkusativ | — | ||
| Dativ | — | ||
| Genitiv | — | ||
| Nominativ | — | ||
| Akkusativ | — | ||
| Dativ | — | ||
| Genitiv | — |
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Frequently asked questions
Everything you might wonder about der, die, das — and the Der Artikel app.
Is it der, die, or das Filter?
What is the plural of der Filter?
What does der Filter mean in English?
How do you decline der Filter?
- Nominativ: der Filter
- Akkusativ: den Filter
- Dativ: dem Filter
- Genitiv: des Filters
These changes are necessary because German uses cases to indicate the noun’s role in a sentence (such as the subject or object). Knowing these forms allows you to build grammatically correct sentences.