This is the 980th most frequent Serbian word.
отворено
"Отворено" means "open" or "opened" in English.
In this sentence, 'отворено' is used as an adverb indicating the state of being open for service or availability.
Ресторан је отворено од 8 ујутру.
The restaurant is open from 8 in the morning.
Here, 'отворено' acts as an adverb modifying the manner of speaking, implying honesty and frankness.
Он је разговарао са мном врло отворено.
He spoke with me very openly.
In this case, 'отворено' is an adverb describing the state of the door, implying that entry is possible.