This is the 1290th most frequent Turkish word.
dışarı
Outside.
Here, 'dışarı' is used as an adverb to indicate movement to the outside.
Dışarı çıkıp biraz temiz hava alabiliriz.
We can go outside and get some fresh air.
In this case, 'dışarıdan' specifies the source of something, which is from the outside.
Dışarıdan bir ses geliyor.
A sound is coming from outside.
Here, 'dışarıdaki' acts as an adjective, describing the location of the subject being outside.