This is the 7439th most frequent Dutch word.
bouwmaterialen
Building materials.
Here 'bouwmaterialen' is used as a subject, referring to materials used for construction.
De bouwmaterialen voor de nieuwe brug zijn gisteren geleverd.
The building materials for the new bridge were delivered yesterday.
In this sentence, 'bouwmaterialen' signifies the goods sold by the store.
Hij werkt in een winkel die bouwmaterialen verkoopt.
He works in a store that sells building materials.
Here 'bouwmaterialen' is used in a plural form to describe the materials that one selects for construction.