norsk

In a sentence

• Studenci uczą się języka norsk w swojej klasie.

  The students are learning the Norwegian language in their class.

  In this sentence, 'norsk' is used as a noun referring to the Norwegian language.

• Mój przyjaciel jest norsk, więc rozmawiamy często po norwesku.

  My friend is Norwegian, so we often talk in Norwegian.

  Here, 'norsk' functions as an adjective describing the nationality of the friend.

• Norweskie krajobrazy są zapierające dech w piersiach, szczególnie na północy.

  Norwegian landscapes are breathtaking, especially in the north.

  Though 'norsk' isn't directly used here, 'norweskie' (Norwegian) is linguistically related and exemplifies adjectival usage to describe noun characteristics.