This is the 4353rd most frequent Polish word.
gotówkę
"Gotówkę" means "cash" in English.
Here, 'gotówkę' denotes available monetary funds in physical form, used to indicate having cash on hand.
Mam gotówkę w portfelu.
I have cash in my wallet.
In this sentence, 'gotówką' specifies the payment method, implying using physical currency instead of a card or other means.
Czy możesz zapłacić gotówką za tę książkę?
Can you pay for this book with cash?
Here, 'gotówki' is used generically to refer to the act of having physical money on one's person.