This is the 6646th most frequent Dutch word.
waaruit
"Waaruit" means "out of what" or "from which."
Here, 'waaruit' connects the noun 'boek' to the relative clause, indicating the source of learning.
Ik heb een boek waaruit ik veel kan leren.
I have a book from which I can learn a lot.
In this sentence, 'waaruit' points to the origin or container of the item mentioned.
De doos waaruit je dat hebt gehaald, staat daar.
The box from which you took that is over there.
Here, 'waaruit' is used in a question form to inquire about the ingredients or components of the soup.