Why does the noun Regenbogen 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 Regenbogen

How it changes across the four cases.

CaseDefiniteIndefiniteNegative
Nominativder Regenbogenein Regenbogenkein Regenbogen
Akkusativden Regenbogeneinen Regenbogenkeinen Regenbogen
Dativdem Regenbogeneinem Regenbogenkeinem Regenbogen
Genitivdes Regenbogeneines Regenbogenkeines Regenbogen

Examples in context

Real sentences using Regenbogen in different cases.

CaseDefiniteIndefiniteNegative
Nominativ
Der bunte Regenbogen ist schön.The colorful rainbow is beautiful.
Ein großer Regenbogen erscheint.A large rainbow appears.
Kein bunter Regenbogen ist sichtbar.No colorful rainbow is visible.
Akkusativ
Ich sehe den bunten Regenbogen.I see the colorful rainbow.
Ich suche einen großen Regenbogen.I am looking for a large rainbow.
Ich finde keinen bunten Regenbogen.I find no colorful rainbow.
Dativ
Ich folge dem bunten Regenbogen.I follow the colorful rainbow.
Ich helfe einem großen Regenbogen nicht.I don't help a large rainbow.
Ich fürchte keinem bunten Regenbogen.I fear no colorful rainbow.
Genitiv
Die Farben des bunten Regenbogens sind schön.The colors of the colorful rainbow are beautiful.
Die Schönheit eines eines großen Regenbogens.The beauty of a large rainbow.
Die Wirkung keines keines bunten Regenbogens.The effect of no colorful rainbow.

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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 Regenbogen?

It is der Regenbogen. In German, every noun has a grammatical gender, and Regenbogen 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 Regenbogen?

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

What does der Regenbogen mean in English?

The German word der Regenbogen translates to “rainbow” in English.

How do you decline der Regenbogen?

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

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.