This is the 11895th most frequent Polish word.
krążyć
To circulate, orbit, or move around in a loop.
In this sentence, 'krążyć' is used to describe the bird's motion of flying in circular paths around the tree.
Ptak zaczął krążyć wokół drzewa.
The bird began to circle around the tree.
Here, 'krążyć' metaphorically describes the spreading or sharing of rumors in a community.
Wśród ludzi zaczęły krążyć plotki.
Rumors began to circulate among the people.
In this context, 'krążyć' metaphorically refers to the mental action of repeatedly focusing on or revisiting a topic in thoughts.