This is the 7358th most frequent Polish word.
kawalerów
"Kawalerów" is the genitive plural form of "kawaler," meaning "bachelors."
The word 'kawalerów' here is used in the genitive plural, referring to unmarried men.
Klub kawalerów ma dzisiaj spotkanie.
The bachelors' club has a meeting today.
Here, 'kawalerów' is describing possession, indicating that the apartments belong to bachelors.
Mieszkania kawalerów są często mniej umeblowane.
Bachelors' apartments are often less furnished.
In this sentence, 'kawalerów' is used in the accusative plural, referring to a group of unmarried men who were seen.