This is the 9612th most frequent Russian word.
холостова
The word "холостова" does not exist in standard Russian. It might be a typo or a specific proper noun.
'Холостова' here is used as a surname, referring to a specific individual named Anna Kholostova.
Анна Холостова написала новую книгу.
Anna Kholostova wrote a new book.
'Холостой' in this context refers to the mechanism being idle or not engaged in operation.
Этот механизм холостой, он не подключён к двигателю.
This mechanism is idle; it is not connected to the engine.
'Холостая' describes a 'blank' or 'dummy' item such as a bullet used for practice.