This is the 7051st most frequent Turkish word.
derneğinin
"Of the association."
In this sentence, 'derneğinin' is used in the genitive case to indicate possession, specifying that the event is organized by the youth sports association.
Gençlik spor derneğinin düzenlediği etkinlik, büyük ilgi gördü.
The event organized by the youth sports association received great attention.
Here, 'derneğinin' reflects the ownership of the projects belonging to the village association, again demonstrating possession.
Köy derneğinin yeni projeleri gerçekten çok ilginç.
The new projects of the village association are truly very interesting.
In this context, 'derneğinin' indicates the association's purpose, using the genitive case to show a possessive relationship.