This is the 6900th most frequent Polish word.
gawron
"Rook" (a type of bird in the crow family).
Here, 'gawron' is used to describe a bird of the corvidae family.
Gawron usiadł na gałęzi.
The rook sat on the branch.
In this case, 'gawron' metaphorically refers to someone cunning or mischievous.
Znajomy to prawdziwy gawron, zawsze coś kombinuje.
My acquaintance is a real rook, always scheming something.
Here, 'gawronów' refers once again to the bird, used in plural to highlight a context of nature.