This is the 15322nd most frequent Russian word.
поступления
"Поступления" means "receipts" or "incomes," depending on the context.
In this context, 'поступления' refers to financial inflows or incoming funds.
Ежемесячные поступления покрывают все наши расходы.
Monthly inflows cover all our expenses.
Here, 'поступления' refers to the submissions or applications for enrollment in the courses.
Поступления на курсы закончились неделю назад.
Applications for the courses ended a week ago.
In this instance, 'поступления' denotes the act of students enrolling or being admitted to universities.