This is the 10672nd most frequent Polish word.
dostawa
Delivery.
Here 'dostawy' is a noun in the genitive case, denoting the object of anticipation.
Oczekujemy dostawy nowych produktów w przyszłym tygodniu.
We are expecting the delivery of new products next week.
In this sentence, 'dostawę' is a noun in the accusative case, marking the direct object of the action.
Firma kurierska zrealizowała dostawę na czas.
The courier company has completed the delivery on time.
In this context, 'dostawa' is used as a singular noun in its base (nominative) form, indicating the concept of delivery.