This is the 306th most frequent Norwegian word.
volodymyr
The word "Volodymyr" is not Norwegian; it is a Ukrainian given name equivalent to "Vladimir" in English.
In this sentence, 'Volodymyr' is used as a proper noun, specifically the name of a person.
Volodymyr besøkte Oslo i sommer.
Volodymyr visited Oslo this summer.
Here, 'Volodymyr' is again a proper noun, used to refer to an individual.
Volodymyr er en venn av meg.
Volodymyr is a friend of mine.
In this example, 'Volodymyr' continues to serve as a proper noun referring to a specific individual.