This is the 1265th most frequent Polish word.
działać
"To act," "to work," or "to function."
In this sentence, 'działać' means 'to act' or 'to take action,' indicating the urgency in responding to a situation.
Musimy działać szybko, aby zapobiec problemom.
We need to act quickly to prevent problems.
Here, 'działać' means 'to work' or 'to function,' referring to the operational status of the clock.
Ten zegar przestał działać i nie pokazuje prawidłowego czasu.
This clock stopped working and doesn't show the correct time.
In this context, 'działa' means 'to work' or 'to be effective,' describing the success of the strategy.