This is the 5951st most frequent French word.
denon
It seems "denon" is not a standard French word. Could you mean "dénom"? If so, "dénom" is short for "dénomination," meaning "name" or "designation."
In this sentence, 'dénonce' is used as the verb 'to denounce', implying expressing strong disapproval or revealing misconduct.
Le professeur dénonce le plagiat dans les devoirs.
The teacher denounces plagiarism in the assignments.
Here, 'dénonciation' is used as a noun meaning 'denunciation' or an act of accusing or reporting misconduct.
Il a fait une dénonciation formelle à la police.
He made a formal denunciation to the police.
In this context, 'dénoncée' is used as the past participle of 'dénoncer', indicating that someone has been accused or criticized.