Why does the noun Mund 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 Mund
How it changes across the four cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | der Mund | ein Mund | kein Mund |
| Akkusativ | den Mund | einen Mund | keinen Mund |
| Dativ | dem Mund | einem Mund | keinem Mund |
| Genitiv | des Mundes | eines Mundes | keines Mundes |
| Nominativ | die Münder | Münder | keine Münder |
| Akkusativ | die Münder | Münder | keine Münder |
| Dativ | den Mündern | Mündern | keinen Mündern |
| Genitiv | der Münder | Münder | keiner Münder |
Examples in context
Real sentences using Mund in different cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | Der rote Mund lächelt.The red mouth is smiling. | Ein kleiner Mund isst.A small mouth is eating. | Kein offener Mund spricht.No open mouth is speaking. |
| Akkusativ | Ich sehe den offenen Mund.I see the open mouth. | Sie hat einen kleinen Mund.She has a small mouth. | Er hat keinen großen Mund.He does not have a big mouth. |
| Dativ | Aus dem kleinen Mund kommt Musik.Music comes from the small mouth. | Er gibt einem hungrigen Mund Essen.He gives food to a hungry mouth. | Mit keinem trockenen Mund kann man pfeifen.One cannot whistle with a dry mouth. |
| Genitiv | Die Farbe des roten Mundes ist intensiv.The color of the red mouth is intense. | Der Kuss eines weichen Mundes ist schön.The kiss of a soft mouth is nice. | Trotz keines offenen Mundes hörte man ihn.Despite no open mouth, he was heard. |
| Nominativ | Die kleinen Münder singen.The small mouths are singing. | Große Münder gähnen laut.Big mouths are yawning loudly. | Keine schmutzigen Münder bitte!No dirty mouths, please! |
| Akkusativ | Der Arzt untersucht die wunden Münder.The doctor examines the sore mouths. | Das Baby macht lustige Münder.The baby is making funny mouths. | Wir wollen keine frechen Münder sehen.We don't want to see any cheeky mouths. |
| Dativ | Sie hilft den armen Mündern.She helps the poor mouths. | Von kleinen Mündern hört man Wahrheit.One hears truth from small mouths. | Ich spreche mit keinen fremden Mündern.I speak with no foreign mouths. |
| Genitiv | Das Lachen der vielen Münder war laut.The laughter of the many mouths was loud. | Die Worte kleiner Münder sind oft ehrlich.The words of small mouths are often honest. | Die Untersuchung keiner wunden Münder war nötig.The examination of no sore mouths was necessary. |
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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 Mund?
It is der Mund. In German, every noun has a grammatical gender, and Mund 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 Mund?
The German noun Mund is categorized as Beginner (A1) vocabulary. It is considered an essential word for learners at this level.
What is the plural of der Mund?
The plural form of der Mund is die Münder. In German, regardless of the singular gender, all plural nouns use the definite article “die.”
What does der Mund mean in English?
The German word der Mund translates to “mouth” in English.
How do you decline der Mund?
Like all German nouns, Mund changes its article depending on the case. In the singular, the forms are:
- Nominativ: der Mund
- Akkusativ: den Mund
- Dativ: dem Mund
- Genitiv: des Mundes
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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