This is the 464th most frequent Croatian word.
novca
"Novca" means "money" in English.
Here, 'novca' is in the genitive case, which is used after 'dovoljno' (enough) to express the amount of money.
Nemam dovoljno novca za kupovinu.
I don't have enough money for shopping.
In this sentence, 'novca' is used again in the genitive case to denote a portion of the total amount, associated with the concept of lesser quantity.
On posuđuje novac, ali vraća manje novca.
He borrows money, but returns less money.
Here, 'novca' is in genitive case due to the word 'malo' (a little), specifying a portion of the money.