This is the 16965th most frequent Turkish word.
çadıra
"To the tent" (dative form of "çadır").
In this sentence, 'çadıra' indicates the direction toward the tent, implying movement towards it.
Çadıra arkadaşlarımızla gittik.
We went to the tent with our friends.
Here, 'çadıra' again shows direction but emphasizes where action (taking shelter) was performed.
Bu yakıcı güneşten korunmak için çadıra sığındık.
To escape from this burning sun, we took shelter in the tent.
In this context, 'çadıra' is used to denote the location where the picnic supplies were arranged.