This is the 17126th most frequent Turkish word.
çukurda
"In the pit" or "in the hollow."
In this sentence, 'çukurda' refers to the location 'in the pit' where the children are playing. The usage indicates a spatial context.
Çocuklar çukurda oynuyor.
The children are playing in the pit.
Here, 'çukurda' describes the location 'in the pit' where the water accumulated. It is used to describe where the activity of 'accumulation' occurred.
Çukurda su birikmişti.
Water had accumulated in the pit.
In this sentence, 'çukurda' specifies the location 'in the pit' with a context of caution, indicating where one should be careful.