This is the 291st most frequent German word.
dritten
The German word "dritten" means "third" (in the dative or accusative case) or "third parties," depending on context.
used as an ordinal number modifying 'Tag'
Am dritten Tag der Woche gehen wir einkaufen.
On the third day of the week, we go shopping.
used as an ordinal number modifying 'Quelle'
Ich habe die Information von einer dritten Quelle bestätigt.
I have confirmed the information from a third source.
used as an ordinal number modifying 'Stock' to indicate a position