noun
December
A1
Means 'December', the month. Masculine noun (der Dezember) with plural form Dezember; singular genitive often adds -s (des Dezembers). Declension follows regular month patterns but note genitive/accusative forms in metadata. No unusual plural form; used for dates and seasonal references.
Examples
Im Dezember schloss die Schule, obwohl noch viele Projekte offen waren.
In December the school closed, although many projects were still open.
Im Dezember feiern wir Weihnachten.
In December we celebrate Christmas.
Im Dezember ist Weihnachten.
Christmas is in December.
Details
Mnemonics
Visualize a snowy calendar page labeled 'Dezember'.
Looks like English 'December'.
Remember 'der Dezember' — months are masculine (der).
Notes
Months are masculine in German; plural is rarely used.