This is the 16001st most frequent Turkish word.
uzaklaşan
"Uzaklaşan" means "moving away" or "receding."
Here, 'uzaklaşan' describes the train as the one which is moving away.
Uzaklaşan trenin sesi hala kulaklarımızda yankılanıyordu.
The sound of the departing train was still echoing in our ears.
In this sentence, 'uzaklaşan' characterizes the birds as the ones moving farther in the sky.
Gökyüzünde uzaklaşan kuşları izledim.
I watched the birds flying away in the sky.
'Uzaklaşan' in this case refers to friends who have moved away or departed.