1. A feeling or consciousness of one’s powers or of reliance on one’s circumstances.
  2. Faith or belief that one will act in a right, proper, or effective way.
  3. The quality or state of being certain.
  4. A relation of trust or intimacy.
  5. Reliance on another’s discretion.
  6. A communication made in confidence.

The emotion of Confidence is found in the Spleen meridian in the Earth element.

Definition from Dictionary by Merriam-Webster.