die · Feminine (Femininum)A2Feminine DeclensionNature & Animals

die Luft

air

Nominative Sg.die Luft

Genitive Sg.der Luft

Nominative Plural

Singular only

Dative Plural—

Gender / Plural CueSingulare tantum (uncountable mass noun, no standard plural)

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)	Question	Singular	Plural
Nominative Nominativ (Werfall)	Wer oder was?	die Luft	— (singular only)
Accusative Akkusativ (Wenfall)	Wen oder was?	die Luft	— (singular only)
Dative Dativ (Wemfall)	Wem?	der Luft	— (singular only)
Genitive Genitiv (Wesfall)	Wessen?	der Luft	— (singular only)

Indefinite (ein / eine): Used when introducing a countable singular noun; has no plural article in German.

Case (Fall)	Question	Singular	Plural
Nominative Nominativ (Werfall)	Wer oder was?	eine Luft	— (singular only)
Accusative Akkusativ (Wenfall)	Wen oder was?	eine Luft	— (singular only)
Dative Dativ (Wemfall)	Wem?	einer Luft	— (singular only)
Genitive Genitiv (Wesfall)	Wessen?	einer Luft	— (singular only)

Negative (kein / keine): Negates nouns with or without an indefinite article; follows ein-words in singular and die in plural.

Case (Fall)	Question	Singular	Plural
Nominative Nominativ (Werfall)	Wer oder was?	keine Luft	— (singular only)
Accusative Akkusativ (Wenfall)	Wen oder was?	keine Luft	— (singular only)
Dative Dativ (Wemfall)	Wem?	keiner Luft	— (singular only)
Genitive Genitiv (Wesfall)	Wessen?	keiner Luft	— (singular only)

Possessive (mein / dein / …): Uses ein-word endings in singular and definite-like endings in plural (mein/dein/sein/ihr/unser/euer/Ihr).

Case (Fall)	Question	Singular	Plural
Nominative Nominativ (Werfall)	Wer oder was?	meine Luft	— (singular only)
Accusative Akkusativ (Wenfall)	Wen oder was?	meine Luft	— (singular only)
Dative Dativ (Wemfall)	Wem?	meiner Luft	— (singular only)
Genitive Genitiv (Wesfall)	Wessen?	meiner Luft	— (singular only)

Why These Endings Work

All feminine (die) nouns stay completely unchanged in the singular across Nominative, Accusative, Dative, and Genitive.

Feminine nouns never change their own ending in the singular across all four cases.
Uncountable / singular-only noun in standard usage (no common plural table).

Pattern summary: Only the article changes in singular (die / die / der / der); plural takes -n in Dative unless ending in -n or -s.

Example Sentences in Context

Nominative

Die Luft in den Bergen ist sehr klar.

The air in the mountains is very clear.

Accusative

Mach das Fenster auf, wir brauchen frische Luft.

Open the window, we need fresh air.

Dative

Die Vögel fliegen hoch in der Luft.

The birds fly high in the air.

Interactive Tools & Related Guides

Check "Luft" in Der/Die/Das Checker Analyze in Compound Deconstructor Inspect Example in Sentence Analyzer

German Gender & ArticlesPredict der, die, das with high-frequency endings The Four German CasesNominative, Accusative, Dative, and Genitive roles Noun Plurals & Dative -nPlural patterns and the Dative plural -n rule Dative Case GuideIndirect objects, prepositions, and der + feminine nouns

FAQs: die Luft

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

"Luft" takes the feminine definite article "die" (die Luft). Gender cue: Singulare tantum (uncountable mass noun, no standard plural).

What is the plural and Dative plural of "die Luft"?

"die Luft" is normally uncountable (singular-only) in standard German and does not form a common plural table.

How does "die Luft" change in the Genitive, Accusative, and Dative?

As a feminine noun, "Luft" keeps the exact same stem in all four singular cases; only the article changes (die Luft / die Luft / der Luft / der Luft).