This is the 5488th most frequent Dutch word.
luik
"Hatch" or "shutter."
In this sentence, 'luik' refers to a hatch or a small door used to cover an opening, often in a horizontal position, such as in a cellar.
Het luik van de kelder is zwaar.
The hatch of the cellar is heavy.
Here, 'Luik' is used as a proper noun referring to the city of Liège in Belgium.
Ik ben gisteren naar Luik gegaan.
Yesterday, I went to Liège.
In this context, 'luik' means a shutter, typically a movable cover used to protect a window.