de·nounce 
(dĭ-nouns)
(dĭ-nouns)tr.v. de·nounced, de·nounc·ing, de·nounc·es
1. To condemn openly as being wrong or reprehensible. See Synonyms at criticize.
2. To inform against (someone); accuse publicly.
3. To give formal announcement of the ending of (a treaty).
[Middle English denouncen, to proclaim, from Anglo-Norman denuncier and Medieval Latin dēnūntiāre, both from Latin : dē-, de- + nūntiāre, to announce (from nūntius, messenger; see neu- in the Appendix of Indo-European roots).]
de·nouncement n.
de·nouncer n.