This is the 1450th most frequent German word.
niederländer
"Netherlander" or "Dutch person" (someone from the Netherlands).
In this sentence, 'Niederländer' is used as a noun referring to a male individual from the Netherlands.
Der Niederländer fährt heute nach Rotterdam.
The Dutchman is driving to Rotterdam today.
Here, 'niederländischen' is an adjective derived from 'Niederländer', describing artists as originating from the Netherlands.
Die niederländischen Künstler präsentieren ihre Werke in der Ausstellung.
The Dutch artists are presenting their works in the exhibition.
'Niederländer' is used as a plural noun referring collectively to people from the Netherlands.