This is the 521st most frequent Turkish word.
sadece
"Only" or "just."
Here, 'sadece' is used to indicate exclusivity, emphasizing that no one else besides the addressee is in the room.
Bu odada sadece sen varsın.
In this room, only you are present.
Here, 'sadece' conveys simplicity or limitation, indicating the sole activity the speaker desires to engage in.
Bugün sadece dinlenmek istiyorum.
Today, I just want to rest.
In this sentence, 'sadece' functions to delimit the scope of what is available or done, specifying that nothing other than clothes is sold.