This is the 750th most frequent Ukrainian word.
пасажирів
"Passengers"
The word 'пасажирів' is the genitive plural form of 'пасажир', referring to 'of passengers', and indicates a group of people who are waiting to be transported.
На автобусній зупинці стояло багато пасажирів.
There were many passengers standing at the bus stop.
Here, 'пасажирів' in genitive plural form denotes the passengers whom are being referred to in the context of the possessive 'of comfort of passengers'.
Перевізник дбає про комфорт пасажирів.
The carrier cares about the comfort of passengers.
In this sentence, 'пасажирів' is used in the accusative plural case as the direct object of the verb, representing the group receiving the driver's action.