This is the 13008th most frequent German word.
zwölf
"Twelve."
Here, 'zwölf' is used as a cardinal number to indicate the quantity of apples.
Ich habe gestern zwölf Äpfel gekauft.
I bought twelve apples yesterday.
In this sentence, 'zwölf' represents the hour of the day, commonly used in time expressions.
Der Zug kommt um zwölf Uhr an.
The train arrives at twelve o'clock.
Again, 'zwölf' is used as a cardinal number to specify the number of girls dancing.