This is the 15009th most frequent Polish word.
rozmiarach
"Rozmiarach" means "sizes" or "dimensions" in English (locative plural form).
Here, 'rozmiarach' is used as the plural, locative case of 'rozmiar', referring to sizes in the context of clothing.
Kupuję ubrania w różnych rozmiarach.
I buy clothes in various sizes.
In this sentence, 'rozmiarach' is again the plural locative case, specifying the available options for sizes.
Artykuły są dostępne w rozmiarach S, M i L.
The items are available in sizes S, M, and L.
Here, 'rozmiarach' is used in the plural locative case to discuss the topic of sizes within a specific context.