This is the 16888th most frequent Turkish word.
çocukluğunda
"In his/her childhood."
The term 'çocukluğunda' is used to specify the time period in which events took place, referring to 'in his/her childhood'.
Çocukluğunda birçok farklı şehirde yaşamış.
In his childhood, he lived in many different cities.
Here, 'çocukluğunda' indicates the time frame during which Ayşe developed the habit of reading, referring to her childhood.
Ayşe, çocukluğunda çok kitap okurdu.
Ayşe used to read a lot of books in her childhood.
In this sentence, 'çocukluğunda' contextualizes the relationship between the experience and the time it occurred, in this case, his childhood.