This is the 11678th most frequent German word.
supermärkten
"Supermärkten" is the dative or plural form of "supermarkets" in German.
Here, 'Supermärkten' is the dative plural form of 'der Supermarkt', used as the object of the preposition 'in', indicating location.
In großen Supermärkten findet man eine Vielzahl von Produkten.
In large supermarkets, one can find a variety of products.
In this sentence, 'Supermärkten' again appears in the dative plural case due to the preposition 'in', which here expresses the place where the action occurs.
Viele Menschen kaufen regelmäßig in Supermärkten ein.
Many people regularly shop in supermarkets.
Here, 'Supermärkten' is in the dative plural form, connected with the article 'den', specifying the supermarkets being talked about as a location of the offers.