This is the 2472nd most frequent Russian word.
преддверии
"Преддверии" means "on the threshold" or "on the brink."
Here, 'преддверии' is used figuratively to indicate the time leading up to an event.
В преддверии Нового года улицы города украшены яркими огнями.
On the eve of the New Year, the city streets are decorated with bright lights.
In this context, 'преддверии' denotes the period directly preceding a specific situation or event.
В преддверии экзаменов студенты усиленно занимаются.
Before exams, students study intensively.
The word 'преддверии' in this case is used to signify the preparatory phase before an event.