full trust; belief in the powers, trustworthiness, or reliability of a person or thing: We have every confidence in their ability to succeed.
belief in oneself and one's powers or abilities; self-confidence; self-reliance; assurance: His lack of confidence defeated him.
certitude; assurance: He described the situation with such confidence that the audience believed him completely.
a confidential communication: to exchange confidences.
(especially 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.
presumption; impudence: Her disdainful look crushed the confidence of the brash young man.
Archaic. something that gives confidence; ground of trust.
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.

1350–1400; Middle English (< Middle French) < Latin confīdentia. See confide, -ence

hyperconfidence, noun
nonconfidence, noun
superconfidence, noun

1. faith, reliance, dependence. See trust. 2. Confidence, assurance both imply a faith in oneself. Confidence may imply trust in oneself or arrogant self-conceit. Assurance implies even more sureness of oneself; this may be shown as undisturbed calm or as offensive boastfulness.

1. mistrust. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
confidence (ˈkɒnfɪdəns)
1.  a feeling of trust in a person or thing: I have confidence in his abilities
2.  belief in one's own abilities; self-assurance
3.  trust or a trustful relationship: take me into your confidence
4.  something confided or entrusted; secret
5.  in confidence as a secret

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

c.1430, from L. confidentia, from confidentem, prp. of confidere "to have full trust or reliance," from con-, intensive prefix, + fidere "to trust" (see faith). For sense of "swindle" see con (3).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Idioms & Phrases


In addition to the idiom beginning with confidence, also see in confidence; take into one's confidence.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Example sentences
Here they oppose us, and complain that this certainty of confidence is
  chargeable with arrogance and presumption.
Nominations and applications will be held in confidence.
However, despite investor confidence, an important obstacle confronts everyone
  in this arena.
Inquiries, nominations, and applications will be treated in confidence.
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