dénoncer

/denɔ̃se/
1.
verbInf1stPres

to report (someone) to the authorities; to inform on someone (often pejorative: 'to snitch')

Il a dénoncé son ami à la police pour réduire sa peine.

He informed on his friend to the police to reduce his sentence.

Synonyms:signaler, informer, balancer
2.
verbInf1stPres

to denounce; to publicly condemn or expose wrongdoing, injustice or bad practices

Le journaliste a dénoncé la corruption au sein de l'entreprise.

The journalist exposed/denounced the corruption within the company.

Synonyms:condamner, critiquer, révéler, exposer