Questions & Answers about Die Wohnung unten ist ruhig.
Wohnung is in the nominative case.
Reason:
- Die Wohnung unten is the subject of the sentence.
- The verb ist (is) needs a subject in the nominative.
- The article die is the nominative singular article for feminine nouns.
So the structure is:
- Die Wohnung unten = subject (nominative)
- ist = verb
- ruhig = predicate adjective (saying something about the subject)
Because Wohnung is a feminine noun in German.
- Feminine nouns use die in the nominative singular.
- der is masculine nominative or feminine dative/genitive.
- das is neuter nominative/accusative.
So:
- die Wohnung = the apartment (correct)
- der Wohnung would only be correct in dative or genitive, e.g. in der Wohnung (in the apartment).
- das Wohnung is always wrong, because the grammatical gender of Wohnung is feminine, not neuter.