This is the 4377th most frequent Russian word.
вагонов
"Вагонов" means "of cars" or "of wagons" (genitive plural form, typically referring to train cars).
Here, 'вагонов' is used as the genitive plural of 'вагон', referring to multiple railway carriages.
На вокзале стояло несколько вагонов.
At the station, there were several carriages.
In this sentence, 'вагонов' again represents the plural genitive form, indicating the quantity of railway carriages required.
Для перевозки товаров требуется много вагонов.
A lot of carriages are needed for transporting goods.
The word 'вагонов' in this context is used to refer to model replicas of railway carriages, showcasing the genitive plural form.