This is the 302nd most frequent Polish word.
działa
The Polish word "działa" means "works" or "functions" (as a verb) or "cannons" (as a noun, plural of "działo").
In this sentence, the word 'działa' is used as a verb derived from 'działać,' meaning 'to work or function' and pertains to how something operates or performs.
To urządzenie działa bardzo sprawnie.
This device works very efficiently.
Here, 'działa' functions as the plural noun for 'działo,' meaning 'cannon,' referring to the equipment used in artillery.
Działa naszej baterii są skuteczne i niezawodne.
The cannons of our artillery are effective and reliable.
Again used as a verb, 'działa' describes the action of functioning or performing properly in reference to systems.