Compound nouns: the last word decides
Frühstück das
Always In 98.9% of 6,721 common compound nouns, the article comes from the last word.
The last part decides the article: das Stück, so das Frühstück.
das Frühstück
It's das Frühstück. Frühstück is neuter, plural die Frühstücke.
Zum Frühstück esse ich Brot.
For breakfast I eat bread.
Frühstück das
Always In 98.9% of 6,721 common compound nouns, the article comes from the last word.
The last part decides the article: das Stück, so das Frühstück.