This is the 7580th most frequent Russian word.
дунцова
"Dунцова" is not a standard Russian word; it may be a proper noun, such as a surname.
Here, 'Дунцова' refers to a proper noun, likely someone's surname, used to describe an author well-known for writing detective stories.
Дунцова всегда пишет интересные детективы.
Duntsova always writes interesting detective stories.
In this sentence, 'Дунцова' continues to serve as a proper noun, likely denoting a person who attended an event.
Дунцова была на встрече с читателями в библиотеке.
Duntsova was at the readers' meeting in the library.
Here, 'Дунцовой' is used in the genitive case to indicate possession, mentioning the stylistic approach of an author named Duntsova.