This is the 428th most frequent Turkish word.
dolu
Full; filled; occupied.
In this sentence, 'dolu' is used as an adjective to describe something that is full or filled.
Bardak suyla dolu.
The glass is full of water.
Here, 'dolu' refers to hail as a noun, indicating the meteorological phenomenon.
Dışarıda dolu yağıyor.
It is hailing outside.
In this context, 'dolu' implies being 'occupied' or 'busy,' used metaphorically to describe something containing many events or engagements.