This is the 1090th most frequent French word.
mons
"Mons" in French refers to a "mount" or "hill."
In this sentence, 'Mons' is used as a proper noun referring to the city Mons in Belgium.
Je vais visiter Mons ce week-end.
I am going to visit Mons this weekend.
Here, 'Mons' is once again utilized as a proper noun to indicate its role as the geographical location where the old castle is situated.
Il y a un vieux château à Mons.
There is an old castle in Mons.
In this case, 'Mons' serves as a proper noun representing the community living in the said location, indicating a locational bond among the residents.