This is the 8415th most frequent Dutch word.
grappen
Jokes.
Here, 'grappen' refers to jokes as a form of humorous stories or statements told by the person.
Hij vertelde altijd grappige grappen.
He always told funny jokes.
In this case, 'grappen' refers to playful actions or words exchanged among the children as a form of amusement.
De kinderen maken grappen met elkaar.
The children are joking around with each other.
Here, 'grappen' pertains to comedic remarks or sentences said by someone which the speaker doesn't fully understand.