This is the 10408th most frequent Russian word.
ввозу
"Ввозу" means "import" or "bringing in."
The word 'ввозу' refers to the importation, specifically the act or process of bringing things into a country.
Ввозу автомобилей из других стран требуется разрешение.
Importing cars from other countries requires permission.
The word 'ввозу' here pertains to regulations about the import processes.
Законы о ввозу товаров были изменены в прошлом году.
The laws regarding the import of goods were changed last year.
In this sentence, 'ввозу' conveys the context of what can or cannot be imported.