Why does the noun Sauerstoff have the article der?
This noun follows no general suffix rule — its gender is part of the core vocabulary you simply learn alongside the word.
Declension table for German noun Sauerstoff
How it changes across the four cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | der Sauerstoff | ein Sauerstoff | kein Sauerstoff |
| Akkusativ | den Sauerstoff | einen Sauerstoff | keinen Sauerstoff |
| Dativ | dem Sauerstoff | einem Sauerstoff | keinem Sauerstoff |
| Genitiv | des Sauerstoff | eines Sauerstoff | keines Sauerstoff |
Examples in context
Real sentences using Sauerstoff in different cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | Der reine Sauerstoff ist wichtig.The pure oxygen is important. | Ein frischer Sauerstoff ist messbar.A fresh oxygen is measurable. | Kein alter Sauerstoff ist hier.No old oxygen is here. |
| Akkusativ | Wir atmen den reinen Sauerstoff ein.We breathe in the pure oxygen. | Ich brauche einen frischen Sauerstoff.I need a fresh oxygen supply. | Er hat keinen schlechten Sauerstoff.He has no bad oxygen. |
| Dativ | Ich arbeite mit dem reinen Sauerstoff.I work with the pure oxygen. | Sie hilft einem neuen Sauerstoff-Gerät.She helps a new oxygen device. | Er gibt keinem alten Sauerstoff Bedeutung.He gives no importance to old oxygen. |
| Genitiv | Der Mangel des reinen Sauerstoffs ist groß.The lack of the pure oxygen is great. | Die Wirkung eines eines frischen Sauerstoffs ist klar.The effect of a fresh oxygen is clear. | Der Geruch keines keines alten Sauerstoffs ist stark.The smell of no old oxygen is strong. |
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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 Sauerstoff?
It is der Sauerstoff. In German, every noun has a grammatical gender, and Sauerstoff is masculine. You should always learn the article together with the noun to ensure your German grammar is correct.
What CEFR level is the word Sauerstoff?
The German noun Sauerstoff is categorized as Upper-Intermediate (B2) vocabulary. It is considered an essential word for learners at this level.
What is the plural of der Sauerstoff?
The noun Sauerstoff is typically used in the singular form (Singularetantum) or has a plural form identical to the singular.
What does der Sauerstoff mean in English?
The German word der Sauerstoff translates to “oxygen” in English.
How do you decline der Sauerstoff?
Like all German nouns, Sauerstoff changes its article depending on the case. In the singular, the forms are:
- Nominativ: der Sauerstoff
- Akkusativ: den Sauerstoff
- Dativ: dem Sauerstoff
- Genitiv: des Sauerstoff
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.
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