Singular
das
Immunsystem
immune system
Plural: die Immunsysteme
Why does the noun Immunsystem have the article das?
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 Immunsystem
How it changes across the four cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | das Immunsystem | ein Immunsystem | kein Immunsystem |
| Akkusativ | das Immunsystem | ein Immunsystem | kein Immunsystem |
| Dativ | dem Immunsystem | einem Immunsystem | keinem Immunsystem |
| Nominativ | die Immunsysteme | Immunsysteme | keine Immunsysteme |
| Akkusativ | die Immunsysteme | Immunsysteme | keine Immunsysteme |
| Dativ | der Immunsysteme | Immunsysteme | keiner Immunsysteme |
Examples in context
Real sentences using Immunsystem in different cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | Das gesundee Immunsystem ist stark.The healthy immune system is strong. | Ein starkeses Immunsystem ist wichtig.A strong immune system is important. | Kein schwacheses Immunsystem schützt.No weak immune system protects. |
| Akkusativ | Ich stärke das gesundee Immunsystem.I strengthen the healthy immune system. | Man braucht ein starkeses Immunsystem.One needs a strong immune system. | Wir haben kein schwaches Immunsystem.We have no weak immune system. |
| Dativ | Er hilft dem gesundenen Immunsystem.He helps the healthy immune system. | Mit einem starken Immunsystem ist man sicher.With a strong immune system, one is safe. | Ich vertraue keinem schwachen Immunsystem.I don't trust any weak immune system. |
| Nominativ | Die gesundenen Immunsysteme sind komplex.The healthy immune systems are complex. | Starkee Immunsysteme sind wichtig.Strong immune systems are important. | Keine schwachenen Immunsysteme helfen.No weak immune systems help. |
| Akkusativ | Ärzte untersuchen die gesundenen Immunsysteme.Doctors examine the healthy immune systems. | Wir brauchen starkee Immunsysteme.We need strong immune systems. | Ich sehe keine schwachen Immunsysteme.I see no weak immune systems. |
| Dativ | Die Entwicklung der gesundenen Immunsysteme.The development of the healthy immune systems. | Die Forschung starken Immunsysteme ist wichtig.The research of strong immune systems is important. | Die Analyse keiner schwachen Immunsysteme.The analysis of no weak immune systems. |
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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 Immunsystem?
It is das Immunsystem. In German, every noun has a grammatical gender, and Immunsystem is neuter. You should always learn the article together with the noun to ensure your German grammar is correct.
What CEFR level is the word Immunsystem?
The German noun Immunsystem is categorized as Upper-Intermediate (B2) vocabulary. It is considered an essential word for learners at this level.
What is the plural of das Immunsystem?
The plural form of das Immunsystem is die Immunsysteme. In German, regardless of the singular gender, all plural nouns use the definite article “die.”
What does das Immunsystem mean in English?
The German word das Immunsystem translates to “immune system” in English.
How do you decline das Immunsystem?
Like all German nouns, Immunsystem changes its article depending on the case. In the singular, the forms are:
- Nominativ: das Immunsystem
- Akkusativ: das Immunsystem
- Dativ: dem Immunsystem
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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