This is the 4900th most frequent Turkish word.
evlerinin
"Of their houses" or "of their homes."
Here, 'evlerinin' means 'their house's' and indicates possession.
Çocuklar evlerinin önünde oynuyordu.
The children were playing in front of their house.
In this context, 'evlerinin' denotes possession referring to the 'door of their house' in Turkish.
Evlerinin kapısı kırılmış.
The door of their house is broken.
In this sentence, 'evlerinin' is used to indicate that the house belongs to the family mentioned.