Why does the noun Briefkasten 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 Briefkasten

How it changes across the four cases.

CaseDefiniteIndefiniteNegative
Nominativder Briefkastenein Briefkastenkein Briefkasten
Akkusativden Briefkasteneinen Briefkastenkeinen Briefkasten
Dativdem Briefkasteneinem Briefkastenkeinem Briefkasten
Genitivdes Briefkastenseines Briefkastenskeines Briefkastens

Examples in context

Real sentences using Briefkasten in different cases.

CaseDefiniteIndefiniteNegative
Nominativ
Der neue Briefkasten ist hier.The new mailbox is here.
Ein neuer Briefkasten steht dort.A new mailbox is standing there.
Hier ist kein neuer Briefkasten.Here is no new mailbox.
Akkusativ
Ich sehe den neuen Briefkasten.I see the new mailbox.
Er braucht einen neuen Briefkasten.He needs a new mailbox.
Sie hat keinen neuen Briefkasten.She has no new mailbox.
Dativ
Ich schreibe auf dem neuen Briefkasten.I write on the new mailbox.
Er legt es in einem neuen Briefkasten.He puts it in a new mailbox.
Ich finde nichts in keinem neuen Briefkasten.I find nothing in no new mailbox.
Genitiv
Die Farbe des neuen Briefkastens ist schön.The color of the new mailbox is beautiful.
Der Inhalt eines neuen Briefkastens fehlt.The content of a new mailbox is missing.
Ich sehe die Rückseite keines neuen Briefkastens.I see the back of no new mailbox.

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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 Briefkasten?

It is der Briefkasten. In German, every noun has a grammatical gender, and Briefkasten is masculine. You should always learn the article together with the noun to ensure your German grammar is correct.

What is the plural of der Briefkasten?

The plural form of der Briefkasten is die Briefkästen. In German, regardless of the singular gender, all plural nouns use the definite article “die.”

What does der Briefkasten mean in English?

The German word der Briefkasten translates to “mailbox” in English.

How do you decline der Briefkasten?

Like all German nouns, Briefkasten changes its article depending on the case. In the singular, the forms are:
  • Nominativ: der Briefkasten
  • Akkusativ: den Briefkasten
  • Dativ: dem Briefkasten
  • Genitiv: des Briefkastens

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.