To report (publicly or not) a dishonest, immoral or illegitimate person or entity.
speak out against; "He denounced the Nazis"
announce the termination of, as of treaties
give away information about somebody; "He told on his classmate who had cheated on the exam"
to accuse or condemn openly or formally: "He denounced the government action."
to accuse or condemn or openly or formally or brand as disgraceful; "He denounced the government action"; "She was stigmatized by society because she had a child out of wedlock"
speak out against
give away information about somebody
to accuse or condemn or openly or formally or brand as disgraceful