This is the 13994th most frequent Russian word.
объявит
"Объявит" means "will announce" or "will declare."
In this sentence, "объявит" is used to describe the action of announcing something publicly or officially. It is in future tense.
Завтра директор объявит об изменении расписания.
Tomorrow the director will announce a schedule change.
Here, "объявит" is used in the context of proclaiming or declaring information. It also is in the future tense.
Он объявит результаты конкурса через неделю.
He will announce the competition results in a week.
"Объявит" in this example signifies the formal declaration of a new law, showing its use in official contexts.