This is the 13065th most frequent Turkish word.
kapıdan
"Kapıdan" means "from the door" or "through the door" in English.
Here, 'kapıdan' indicates the point or location of departure, 'through the door'.
Kapıdan çıkan adamı gördüm.
I saw the man who exited through the door.
In this case, 'kapıdan' describes the source or origin of the sound, 'from the door'.
Kapıdan gelen ses çok tuhaftı.
The sound coming from the door was very strange.
In this sentence, 'kapıdan' refers to the means or point of entry, specifically 'through the door'.