denounce

verb6

1. •
   To criticize or speak out against (someone or something); to point out as deserving of reprehension, etc.; to openly accuse or condemn in a threatening manner; to invoke censure upon; to stigmatize; to blame.

   • Mr. Cameron had a respite Thursday from the negative chatter swirling around him when he appeared outside 10 Downing Street to denounce the murder a day before of a British soldier on a London street. — 2013
2. •
   To make a formal or public accusation against; to inform against; to accuse.
3. •
   To announce the termination of; especially a treaty or armistice.

   • A Contracting State may denounce this Convention, or Part II or Part III of the Convention, by a formal notification in writing addressed to the depositary. — 2021
4. •
   (US, historical) To claim the right of working a mine that is abandoned or insufficiently worked.
5. •
   (no longer used) To make known in a formal manner; to proclaim; to announce; to declare.

   • Nero[…]sent his Satellites or officers toward him, to denounce the decree of his death to him[…]. — 1603
6. •
   (no longer used) To proclaim in a threatening manner; to threaten by some outward sign or expression; make a menace of.