This is the 10554th most frequent Catalan word.
quadern
Notebook.
The word 'quadern' refers to a physical notebook used for writing in this context.
He comprat un quadern nou per a l'escola.
I bought a new notebook for school.
Here, 'quadern' is used to describe a specific type of notebook, namely one used for drawing.
El quadern de dibuix té moltes pàgines en blanc.
The drawing notebook has many blank pages.
In this sentence, 'quadern' represents a personal diary or journal in which thoughts are written.