This is the 6463rd most frequent German word.
einfamilienhäusern
"Single-family houses."
Here, 'Einfamilienhäusern' is used in the dative plural form to describe single-family homes in a specific location.
In dieser Wohngegend gibt es viele Einfamilienhäusern.
In this residential area, there are many single-family homes.
In this sentence, 'Einfamilienhäusern' is part of a prepositional object, reflecting the idea of living in such types of homes.
Sie träumen von einem Leben in Einfamilienhäusern.
They dream of a life in single-family homes.
Here, 'Einfamilienhäusern' serves as a dative plural form, denoting ownership or attribution to the architecture.