This is the 735th most frequent Serbian word.
организатор
Organizer.
Here, 'организатор' is used as a noun to describe the person responsible for organizing an event.
Организатор догађаја је био веома професионалан.
The event organizer was very professional.
In this sentence, 'организатор' functions as a noun indicating someone's role or responsibility in organizing something.
Као организатор, он брине о свим детаљима.
As an organizer, he takes care of all the details.
'Организатор' here is a noun describing the individual or entity that arranged the tour.