This is the 529th most frequent Norwegian word.
øvelsen
"The exercise" (definite form of "øvelse").
Here, 'øvelsen' refers to a specific task or activity designed to practice and improve a skill, in this case related to grammar.
Denne øvelsen hjelper oss å forstå grammatikk bedre.
This exercise helps us understand grammar better.
In this sentence, 'øvelsen' refers to a physical activity or training session conducted previously.
Øvelsen i går var fysisk krevende.
Yesterday's exercise was physically demanding.
Here, 'øvelsen' denotes a general exercise or task, emphasizing regularity in its repetition.