confidence
US /ˈkɑːn.fə.dəns/
UK /ˈkɑːn.fə.dəns/

1.
2.
a feeling of self-assurance arising from one's appreciation of one's own abilities or qualities
:
•
He gained confidence after winning the competition.
•
Lack of confidence can hinder your progress.
3.
the state of feeling certain about the truth of something
:
•
I can say with confidence that he is innocent.
•
The police expressed confidence that they would catch the suspect.
4.
a secret or private matter told to one in trust
:
•
She shared a personal confidence with her best friend.
•
He was entrusted with many state confidences.