This is the 971st most frequent Hebrew word.
הודיעו
"Announced" or "informed."
In this sentence, 'הודיעו' means 'they announced', describing the action of making a public or formal declaration.
הם הודיעו על ביטול הפגישה.
They announced the cancellation of the meeting.
'הודיע' in this context is used to mean 'notified', indicating that the courier made known the arrival of the package.
השליח הודיע על הגעתו של החבילה למשרד.
The courier notified about the arrival of the package to the office.
Here, 'הודיע' means 'informed', denoting the teacher's act of telling the students important information.