This is the 1703rd most frequent Turkish word.
büyükçekmece
Büyükçekmece: A district and municipality in Istanbul, Turkey.
Here, 'Büyükçekmece' is used as a proper noun, the name of a district in Turkey.
Büyükçekmece güzel bir ilçe.
Büyükçekmece is a beautiful district.
In this sentence, 'Büyükçekmece' shows location, referring to the district where the action took place.
Dün Büyükçekmece'de yürüyüş yaptık.
Yesterday, we took a walk in Büyükçekmece.
Here, 'Büyükçekmece' indicates possession, describing which coast was involved.