This is the 2786th most frequent German word.
organisierten
"Organisierten" means "organized" in English, referring to something or someone arranged in a structured or systematic way.
In this sentence, 'organisierten' is used as the past tense (third person plural) of the verb 'organisieren', indicating an act performed by the students in the past.
Die Schüler organisierten ein Sportfest, um Geld für wohltätige Zwecke zu sammeln.
The students organized a sports festival to raise money for charity.
Here, 'organisierten' is used as part of a participial phrase ('bei der organisierten Veranstaltung') to describe the event as being organized, attributive usage.
Bei der organisierten Veranstaltung gab es viele interessante Vorträge.
At the organized event, there were many interesting presentations.
This usage of 'organisierten' shows its application in the past perfect tense formed with 'haben', emphasizing the completed action of organizing.