confidence
n. uncountablen. the feeling that you can trust someone or something. It also means believing in your own ability to do things well.
n. a state of feeling certain about the truth of something or the reliability of a person. Also refers to self-assurance arising from an appreciation of one's own abilities or qualities.
She has the confidence to lead the team.
The investors lost confidence in the company after the CEO resigned unexpectedly.
Building public confidence in new medical technologies requires not only rigorous testing but also transparent communication regarding potential risks and long-term benefits.
From Middle English confidence, from Latin cōnfīdentia (possibly via Old French confidence), from cōnfīdō (“believe, confide in”) from con- (“with”) + fīdō (“trust”). By surface analysis, confide + ence.
Often takes the preposition 'in' when referring to trust in others, or 'to' followed by an infinitive when referring to self-assurance.
I have confidence on youI have confidence in youThe noun confidence takes the preposition 'in' when expressing trust in a person or system.