Pronunciation: (kon'fi-duns),[key] —n. 1. full trust; belief in the powers, trustworthiness, or reliability of a person or thing: We have every confidence in their ability to succeed. 2. belief in oneself and one's powers or abilities; self-confidence; self-reliance; assurance: His lack of confidence defeated him. 3. certitude; assurance: He described the situation with such confidence that the audience believed him completely. 4. a confidential communication: to exchange confidences. 5. (esp. in European politics) the wish to retain an incumbent government in office, as shown by a vote in a particular issue: a vote of confidence. 6. presumption; impudence: Her disdainful look crushed the confidence of the brash young man. 7. Archaic.something that gives confidence; ground of trust.
8. in confidence, as a secret or private matter, not to be divulged or communicated to others; with belief in a person's sense of discretion: I told him in confidence.