This is the 793rd most frequent Slovenian word.
koper
"Koper" in Slovenian refers to the city of Koper.
Here, 'Koper' is a proper noun, used as the name of a city in Slovenia.
Koper je lep obalni kraj v Sloveniji.
Koper is a beautiful coastal town in Slovenia.
In this context, 'koper' is a noun referring to the aromatic herb dill.
V vrtu sem nabral svež koper za solato.
I picked fresh dill from the garden for the salad.
Here, 'Koper' is again a proper noun, denoting a geographical location, specifically its role as a port.