n.1 firm trust (have confidence in his ability).
2 a a feeling of reliance or certainty. b a sense of self-reliance; boldness.
3 a something told confidentially. b the telling of private matters with mutual trust.
Phrases and idioms:
confidence man a man who robs by means of a confidence trick. confidence trick (US game) a swindle in which the victim is persuaded to trust the swindler in some way. in confidence as a secret. in a person's confidence trusted with a person's secrets. take into one's confidence confide in.
Etymology: ME f. L confidentia (as confide)