This is the 75th most frequent Turkish word.
belediyesi
"Belediyesi" means "municipality" in English.
Here, 'belediyesi' refers to the municipal government of Istanbul, indicating its role and responsibilities.
İstanbul Belediyesi tüm vatandaşlara ücretsiz maske dağıttı.
The Istanbul Municipality distributed free masks to all citizens.
In this context, 'belediyesi' represents ownership indicating that the art exhibition was organized by Ankara's municipal authority.
Ankara Belediyesi'nin düzenlediği resim sergisini ziyaret ettim.
I visited the art exhibition organized by the Ankara Municipality.
This usage of 'belediyesi' indicates that the campaign was initiated as a project by the municipal authorities of Izmir.