This is the 10218th most frequent Polish word.
burzą
"Burzą" means "storm" (instrumental form of "burza") in English.
Here, "burzą" is used as a verb form meaning "to rebel" or "to rise against."
Burzą się na swoje obowiązki.
They rebel against their duties.
In this context, "burzą" functions as a noun (storm) in instrumental case, indicating the agent causing an action or accompanying something.
Burzą nadciągała z południa.
The storm was approaching from the south.
Here, "burzą" serves as a verb meaning "to destroy" or "to pull down," depicting an action performed by subjects.