denounce

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To condemn openly as being evil or reprehensible. See Synonyms at criticize.
2. v. To accuse formally.
3. v. To give formal announcement of the ending of (a treaty).

Century Dictionary and Cyclopedia

1. To make known in a formal manner; proclaim; announce; declare.
2. To proclaim or declare as impending or threatened; formally or publicly threaten to do or effect; make a menace of: as, to denounce war; to denounce punishment.
3. To proclaim censure or condemnation of; brand publicly; stigmatize; arraign: as, to denounce one as a swindler, or as a coward.
4. To make formal or public accusation against; inform against; accuse: used especially where knowledge of wrongful acts has been acquired confidentially or stealthily: as, to denounce a confederate in crime; to denounce one to the authorities.
5. In Mexican and Spanish mining-law:
6. To lay an information against (a mine) as forfeit because of abandonment, or through being insufficiently worked; hence, to claim the right to work (such a mine) by laying an information against it.
7. To announce and register the discovery of (a new mine or mineral deposit), and thus preëmpt; hence, to lay claim to on the ground of discovery and registry.
8. In diplomacy, to announce the intention of abrogating (a treaty) in accordance with its provisions or arbitrarily.

Wiktionary

1. v. transitive, obsolete To make known in a formal manner; to proclaim; to announce; to declare.
2. v. transitive To criticize or speak out against (someone or something); to point out as deserving of reprehension or punishment, etc.; to openly accuse or condemn in a threatening manner; to invoke censure upon; to stigmatize; to blame.
3. v. transitive To make a formal or public accusation against; to inform against; to accuse.
4. v. transitive, obsolete To proclaim in a threatening manner; to threaten by some outward sign or expression; make a menace of.
5. v. transitive To announce the termination of; especially a treaty or armistice.

GNU Webster's 1913

1. v. obsolete To make known in a solemn or official manner; to declare; to proclaim (especially an evil).
2. v. To proclaim in a threatening manner; to threaten by some outward sign or expression.
3. v. To point out as deserving of reprehension or punishment, etc.; to accuse in a threatening manner; to invoke censure upon; to stigmatize.

WordNet 3.0

1. v. announce the termination of, as of treaties
2. v. speak out against
3. v. to accuse or condemn or openly or formally or brand as disgraceful
4. v. give away information about somebody