недобо́р

rare #35588nounmasculineinanimateuncountable

1.
shortfall, shortage, deficit (in numbers)
В э́том го́ду в университе́те недобо́р студе́нтов.
There is a shortfall of students at the university this year.
Typical of recruitment, enrolment and staffing: недобор студентов/новобранцев.
2.
arrears, shortfall in revenue, under-collectionfinance
Бюдже́т пострада́л и́з-за недобо́ра нало́гов.
The budget suffered because of a shortfall in tax collection.
Of taxes, fees, revenue.

Examples

В этом году в школе большой недобор учеников.
There is a significant shortage of students at the school this year.
Из-за недобора группу не открыли.
The group wasn't opened because there weren't enough students.
Директор жаловался на недобор рабочих.
The director complained about the shortage of workers.