This is the 11972nd most frequent Polish word.
kółek
The Polish word "kółek" is the genitive plural form of "kółko," meaning "small circles" or "rings."
Here, 'kółek' refers to a diminutive plural form of 'koło' (wheel), indicating small wheels typically used for vehicles or movable objects.
Mam zestaw kółek do deskorolki.
I have a set of wheels for the skateboard.
In this sentence, 'kółkiem' (instrumental case) describes a small individual wheel, using the diminutive form to add a sense of smallness or endearment.
Dziecko bawi się kółkiem od wózka.
The child is playing with a little wheel from the stroller.
Here, 'kółek' refers to the plural accusative form of 'kółko', meaning a small circle or ring-like shape, showcasing a shift in meaning from a physical wheel to a geometric shape.