confidence

(kŏnˈfĭ-dəns)

1. Trust or faith in a person or thing.
2. A trusting relationship: I took them into my confidence.
3. a. That which is confided; a secret: A friend does not betray confidences.
   b. A feeling of assurance that a confidant will keep a secret: I am telling you this in strict confidence.
4. A feeling of assurance, especially of self-assurance.
5. The state or quality of being certain: I have every confidence in your ability to succeed.