This is the 4526th most frequent Polish word.
krąg
Circle; group; sphere.
In this sentence, 'krąg' is used metaphorically to represent a group or community, specifically of friends.
Mamy wspólny krąg przyjaciół.
We have a common circle of friends.
Here, 'krąg' describes a physical formation or arrangement.
Dzieci usiadły w kręgu na dywanie.
The children sat in a circle on the carpet.
In this instance, 'krąg' is used metaphorically to denote a range or scope of subjects.