This is the 2152nd most frequent Dutch word.
klimmen
To climb.
Here, 'klimmen' is used in the meaning of physically ascending something, like a mountain or a hill.
Ik klim op de berg.
I am climbing up the mountain.
In this sentence, 'klimmen' shows the ability of the monkey to ascend into the branches of the tree.
De aap klimt in de boom.
The monkey climbs into the tree.
In this example, 'klimmen' represents an aspirational action, where an individual aims to ascend an artificial climbing structure for practice or sport.