confidence
//ˈkɒnfɪdəns//
Noun
confidencesPlural
1
A feeling of self-assurance arising from one's appreciation of one's own abilities or qualities
She spoke with confidence during the presentation.
2
The state of feeling certain about the truth of something
I have confidence that we will succeed.
3
A secret or private matter told to someone under a condition of trust
She shared her confidence with me, trusting I would keep it secret.
4
The telling of private matters or secrets with mutual trust
She told me about her problems in confidence.