This is the 1919th most frequent Polish word.
usd
The term "usd" is not a Polish word; it may refer to an abbreviation for the U.S. dollar (USD).
The abbreviation USD refers to the United States Dollar currency, used here as a unit of measure for the amount of money indicated.
Mam na koncie 1000 USD.
I have 1000 USD in my account.
The abbreviation USD functions as a specification of the currency in which prices are listed, alongside PLN which represents Polish Zloty.
Ceny zostały podane w USD i PLN.
The prices were given in USD and PLN.
Here, USD is used to describe the foreign currency into which Polish Zloty (PLN) was converted during the exchange.