This is the 2098th most frequent Swedish word.
dmitrij
"Dmitrij" is not a Swedish word; it is a variation of the name "Dmitry," of Russian origin, used as a proper noun.
Dmitrij is used as a proper noun referring to a person's name in this sentence.
Dmitrij studerar svenska på universitetet.
Dmitrij is studying Swedish at the university.
Here, Dmitrij is again a proper noun, referring to the author of the book.
Vi läste en bok skriven av Dmitrij.
We read a book written by Dmitrij.
In this sentence, Dmitrij is mentioned as a person known to the speaker and listener.