This is the 12403rd most frequent Russian word.
кассиров
Cashiers.
This usage refers to 'кассира' as the profession, indicating individuals employed to handle transactions.
В магазине работают три кассира.
There are three cashiers working in the store.
The word 'кассир' is used here to identify the role or person providing service during a purchase.
Кассир дал мне сдачу.
The cashier gave me the change.
In this sentence, 'кассиров' is used in the plural form in the context of discussing new employees being trained for the role of cashier.