Meaning of denounce

de•nounce

1. to condemn or censure openly or publicly: to denounce a politician as morally corrupt.
2. to make a formal accusation against, as to the police or in a court.
3. to give formal notice of the termination or denial of (a treaty, pact, agreement, or the like).
4. to announce or proclaim, esp. as something evil or calamitous.
5. to portend.