This is the 6823rd most frequent Polish word.
fiodorow
"Fiodorow" does not have a standalone definition in Polish; it may be a surname or a possessive form related to "Fiodor," the Polish version of the name "Fyodor."
In this sentence, 'Fiodorowa' denotes possession, indicating that the book belongs to someone named Fiodorow.
Książka Fiodorowa jest bardzo interesująca.
Fiodorow's book is very interesting.
Here, 'Fiodorow' is used in its nominative form to refer to a person named Fiodorow.
Spotkałem Fiodorow w parku.
I met Fiodorow in the park.
In this example, 'Fiodorow' is the subject of the sentence, used nominatively to describe a person also characterized as a teacher.