This is the 7511th most frequent Turkish word.
güçlenen
"Strengthening" or "becoming stronger."
Here, 'güçlenen' is an adjective derived from the verb 'güçlenmek', describing factors that are becoming strong.
Ekonomi güçlenen faktörlerle istikrara kavuşuyor.
The economy becomes stable with the strengthening factors.
In this sentence, 'güçlenen' is used to describe muscles that are becoming stronger due to exercise or other influences.
Güçlenen kasları sayesinde ağır eşyaları taşıyabiliyor.
He can carry heavy items thanks to his strengthening muscles.
'Güçlenen' here describes players who are improving and becoming stronger.