No. 10,042 in Russian
астрономии
The Russian word "астрономии" means "astronomy" (the study of celestial objects and phenomena).
In a sentence
Я изучаю основы астрономии в университете.
I am studying the basics of astronomy at university.
Here, 'астрономии' is in the genitive case, indicating it is the subject of study.
Книга по астрономии была интересной.
The book on astronomy was interesting.
In this instance, 'астрономии' functions as a specification in the genitive case, determining the field of the book.
На конференции прозвучали несколько докладов об астрономии.
At the conference, several presentations about astronomy were given.
Here, 'астрономии' is part of a prepositional phrase denoting the topic discussed.
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