This is the 134th most frequent Greek word.
όλο
The Greek word "όλο" means "whole," "all," or "entire."
In this sentence, 'όλο' means 'the whole' or 'all,' referring to the entire night.
Όλο το βράδυ έβρεχε.
It rained all night.
Here, 'όλο' indicates the entirety of something, emphasizing completion.
Φάγαμε όλο το ψωμί.
We ate all the bread.
In this context, 'όλο' expresses something happening continually or repetitively.