This is the 330th most frequent Polish word.
samochodów
The word "samochodów" is the genitive plural form of "samochód," meaning "cars" in English.
In this sentence, 'samochodów' is the genitive plural form of 'samochód,' used here because it complements 'dużo' (a quantifier that requires genitive).
Mam dużo samochodów na sprzedaż.
I have many cars for sale.
In this sentence, 'samochodów' is in the genitive plural form because it follows 'żadnych,' which demands its object in the genitive case.
Nie widziałem wczoraj żadnych samochodów na ulicy.
I did not see any cars on the street yesterday.
Here, 'samochodów' is the genitive plural form, used because 'fanem' (fan) implies possession or association, requiring genitive case for the related noun.