This is the 3707th most frequent Polish word.
koło
Circle; wheel; near.
The word 'koło' here means 'wheel', referring to a round object that spins, often associated with vehicles or machinery.
Wczoraj znalazłem stare koło od roweru.
Yesterday I found an old wheel from a bicycle.
The word 'koło' here is used as a preposition meaning 'near' or 'around', indicating proximity to a location.
Mieszkamy koło szkoły, więc dzieciom blisko do nauki.
We live near the school, so the children have a short distance to school.
In this sentence, 'koło' is used to mean 'around' or 'approximately' when talking about time.