Why does the noun Arm 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 Arm
How it changes across the four cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | der Arm | ein Arm | kein Arm |
| Akkusativ | den Arm | einen Arm | keinen Arm |
| Dativ | dem Arm | einem Arm | keinem Arm |
| Genitiv | des Armes | eines Armes | keines Armes |
| Nominativ | die Arme | Arme | keine Arme |
| Akkusativ | die Arme | Arme | keine Arme |
| Dativ | den Armen | Armen | keinen Armen |
| Genitiv | der Arme | Arme | keiner Arme |
Examples in context
Real sentences using Arm in different cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | Der linke Arm tut weh.The left arm hurts. | Ein langer Arm ist sehr stark.A long arm is very strong. | Kein menschlicher Arm ist gebrochen.No human arm is broken. |
| Akkusativ | Ich sehe den rechten Arm.I see the right arm. | Er hat einen gebrochenen Arm.He has a broken arm. | Ich brauche keinen künstlichen Arm.I don't need an artificial arm. |
| Dativ | Ich helfe dem schwachen Arm.I help the weak arm. | Er gibt es mit einem linken Arm.He gives it with a left arm. | Das gelingt mit keinem gebrochenen Arm.That won't succeed with a broken arm. |
| Genitiv | Die Kraft des rechten Armes ist groß.The strength of the right arm is great. | Die Länge eines menschlichen Armes ist normal.The length of a human arm is normal. | Die Funktion keines künstlichen Armes ist unklar.The function of no artificial arm is unclear. |
| Nominativ | Die beiden Arme sind müde.Both arms are tired. | Starke Arme halten das Schild.Strong arms hold the sign. | Er hat keine langen Arme.He has no long arms. |
| Akkusativ | Er hebt die beiden Arme.He raises both arms. | Sie hat dünne Arme.She has thin arms. | Ich sehe keine freien Arme.I see no free arms. |
| Dativ | Sie trägt das Kind in den Armen.She carries the child in her arms. | Er arbeitet mit bloßen Armen.He works with bare arms. | Mit keinen müden Armen geht das.That's not possible with tired arms. |
| Genitiv | Die Bewegung der beiden Arme ist synchron.The movement of both arms is synchronous. | Die Muskeln langer Arme sind trainiert.The muscles of long arms are trained. | Trotz keiner schwachen Arme gibt er auf.Despite having no weak arms, he gives up. |
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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 Arm?
It is der Arm. In German, every noun has a grammatical gender, and Arm 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 Arm?
The German noun Arm is categorized as Beginner (A1) vocabulary. It is considered an essential word for learners at this level.
What is the plural of der Arm?
The plural form of der Arm is die Arme. In German, regardless of the singular gender, all plural nouns use the definite article “die.”
What does der Arm mean in English?
The German word der Arm translates to “arm” in English.
How do you decline der Arm?
Like all German nouns, Arm changes its article depending on the case. In the singular, the forms are:
- Nominativ: der Arm
- Akkusativ: den Arm
- Dativ: dem Arm
- Genitiv: des Armes
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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