This is the 613th most frequent Russian word.
банк
The Russian word "банк" means "bank" in English.
Here, 'банк' refers to a physical financial institution.
Я иду в банк за деньгами.
I am going to the bank to get money.
Here, 'банк' is used to mean the bank of a river, a geographical feature.
Он сидел на берегу реки, на сухом песчаном банке.
He sat on the riverbank, on the dry sandy bank.
In this context, 'банк' refers to a collection or repository of data.