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der · Masculine (Maskulinum)A2Strong DeclensionNature & Animals

der Fluss

river

Nominative Sg.der Fluss
Genitive Sg.des Flusses
Nominative Plural
die Flüsse
Dative Pluralden Flüssen
Gender / Plural CueShort vowel -> double s (ss) in Flusses and Flüsse

Full 4-Case Declension Table

Switch determiner types to inspect how articles and noun endings change together.

Definite (der / die / das): Used for specific, already known, or general-category nouns.

Case (Fall)QuestionSingularPlural
Nominative
Nominativ (Werfall)
Wer oder was?
der Fluss
die Flüsse
Accusative
Akkusativ (Wenfall)
Wen oder was?
den Fluss
die Flüsse
Dative
Dativ (Wemfall)
Wem?
dem Fluss
den Flüssen
Genitive
Genitiv (Wesfall)
Wessen?
des Flusses
der Flüsse

Why These Endings Work

Standard pattern for most masculine (der) and neuter (das) nouns: genitive singular ends in -s or -es.

  • Dative plural adds -n to the plural stem: Flüsse → Flüssen.
Pattern summary: Genitive Sg adds -(e)s; Accusative/Dative Sg equal the base noun.

Example Sentences in Context

Accusative

Wir machen heute einen Ausflug an den Fluss.

Today we are taking a trip to the river.

Genitive

Am Ufer des Flusses machen wir ein Picknick.

We have a picnic on the bank of the river.

Interactive Tools & Related Guides

FAQs: der Fluss

Is "Fluss" der, die, or das in German?

"Fluss" takes the masculine definite article "der" (der Fluss). Gender cue: Short vowel -> double s (ss) in Flusses and Flüsse.

What is the plural and Dative plural of "der Fluss"?

The Nominative plural of der Fluss is "die Flüsse" (pattern: ¨-e). In the Dative plural it becomes "den Flüssen".

How does "der Fluss" change in the Genitive, Accusative, and Dative?

As a strong masculine noun, "Fluss" changes only in the Genitive singular (des Flusses); Accusative and Dative keep "Fluss".