This is the 1990th most frequent Polish word.
działaniu
The word "działaniu" translates to "action" or "operation" in English, depending on context.
In this sentence, 'działaniu' is used to express the context of taking action or being in the state of executing activities effectively.
Skuteczność w działaniu jest kluczem do sukcesu.
Effectiveness in action is the key to success.
Here, 'działaniu' describes the operation or function of the immune system, focusing on how actions are executed within the system.
Przeciwciała odgrywają ważną rolę w działaniu systemu odpornościowego.
Antibodies play an important role in the functioning of the immune system.
In this usage, 'działaniu' refers to the operation or performance of software, specifically how it performs its intended tasks.