noun (n)

• freedom from doubt; belief in yourself and your abilities(noun.cognition)

  Example:
  After that failure he lost his confidence.
  

  Synonym:
  assurance, authority, self-assurance, self-confidence, sureness
  

  source: wordnet30
• a feeling of trust (in someone or something)(noun.feeling)

  Example:
  I have confidence in our team.
  Confidence is always borrowed, never owned.
  

  Antonym:
  diffidence, self-distrust, self-doubt
  

  source: wordnet30
• a state of confident hopefulness that events will be favorable(noun.state)

  Example:
  Public confidence in the economy.
  

  source: wordnet30
• a trustful relationship(noun.state)

  Example:
  He took me into his confidence.
  

  Synonym:
  trust
  

  source: wordnet30
• a secret that is confided or entrusted to another(noun.communication)

  Example:
  Everyone trusted him with their confidences.
  The priest could not reveal her confidences.
  

  source: wordnet30
• The act of confiding, trusting, or putting faith in; trust; reliance; belief; -- formerly followed by of, now commonly by in.(noun)

  source: webster1913