Declension of the word "Feuerfestigkeit"

Singular and plural for Feuerfestigkeit, f, female declension     translation to English refractoriness

Singular
Plural
Singular
Nominativ (Wer? Was?)
die Feuerfestigkeit
die Feuerfestigkeiten
Genitiv (Wessen?)
der Feuerfestigkeit
der Feuerfestigkeiten
Dativ (Wem?)
der Feuerfestigkeit
den Feuerfestigkeiten
Akkusativ (Wen? Was?)
die Feuerfestigkeit
die Feuerfestigkeiten
Plural
die Feuerfestigkeiten
der Feuerfestigkeiten
den Feuerfestigkeiten
die Feuerfestigkeiten
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