Translation

1. twenty-one cardinal, numeral

   Während des Sommers wird es in Italien nicht vor einundzwanzig Uhr dunkel.

   In Italy, during summer, it doesn't get dark until about nine o'clock.

   Musst du nicht über einundzwanzig sein, um das zu machen?

   Don't you have to be over twenty-one to do that?

Translation

1. twenty-one (number) feminine
2. blackjack source:wikdict-en-de-stardict
3. blackjack (card game) feminine

Declension

Translation

1. twentyone source:freedict-eng-deu-dictd
2. twenty-one source:dictcc-tuchemnitz-de-en