This is the 248th most frequent Serbian word.
питању
The Serbian word "питању" means "question" or "matter" (dative/locative singular of "питање").
In this sentence, 'питању' is a dative case form of 'питање,' used here to mean 'question' or 'issue,' representing the topic under discussion.
Овде се ради о веома важном питању.
This is about a very important issue.
Here, 'питању' appears in a fixed expression 'у питању,' meaning 'to be the matter' or 'at stake,' indicating something significant.
Шта је то у питању?
What is the matter?
In this case, 'питање' remains in its nominative case, illustrating its role as the subject of the sentence, demonstrating its primary meaning as 'question' or 'issue.'