This is the 15765th most frequent Turkish word.
tişörtleriyle
"With their t-shirts."
Here "tişörtleriyle" is used to indicate the children wearing their t-shirts as part of the activity.
Çocuklar oyun oynarken tişörtleriyle çok rahat hissediyor.
The children feel very comfortable with their t-shirts while playing.
In this sentence, "tişörtleriyle" conveys the idea of people dressed in t-shirts when going outside.
Yaz aylarında herkes tişörtleriyle dışarı çıkmayı tercih ediyor.
In the summer, everyone prefers to go outside wearing their t-shirts.
The word "tişörtleriyle" shows the relationship between the players and their t-shirts, highlighting pride and identification.