This is the 3835th most frequent Dutch word.
venster
Window.
Here, 'venster' is used to mean 'window' in the sense of an opening in a building that lets light and air through.
Ik opende het venster om frisse lucht binnen te laten.
I opened the window to let in fresh air.
In this context, 'venster' refers to a 'window' within a computer application or operating system.
Tijdens de computerles leerde hij een nieuw venster in de webbrowser te openen.
During the computer class, he learned to open a new window in the web browser.
'Venster' is again used to mean a 'window' in a physical sense, the opening in the wall of the painter's studio.