This is the 603rd most frequent French word.
annonce
Announcement.
Here, 'annonce' is used as a noun meaning 'announcement' or 'notification'.
L'annonce de la réunion a été affichée sur le panneau.
The announcement of the meeting was posted on the board.
Here, 'annonce' refers to an 'advertisement' or 'job posting'.
Elle a répondu à une annonce d'emploi en ligne.
She responded to a job advertisement online.
In this usage, 'annoncer' (derived from 'annonce') is used as a verb meaning 'to announce'.