This is the 15739th most frequent German word.
zustellen
"Zustellen" means "to deliver" or "to block/obstruct," depending on context.
Zustellen is used here to mean 'deliver something to a recipient.'
Der Postbote wird das Paket morgen zustellen.
The mail carrier will deliver the package tomorrow.
Zustellen here means 'block an area or access.'
Bitte stellen Sie sicher, dass niemand den Durchgang zustellt.
Please make sure no one blocks the passage.
Zustellen is used in the sense of 'obstructing or barring.'