confiance
trust
reliance (trust placed in a person or thing)
Je te prête mes clés parce que j'ai confiance en toi.
I'm lending you my keys because I trust you.
self-confidence
confidence in one's own abilities
Il a besoin de reprendre confiance en lui pour réussir.
He needs to regain his self-confidence to succeed.
Notes
GENERAL INFO
Confiance is a feminine noun meaning "trust" or "confidence."
USAGE
You often use it with verbs like "avoir" ("avoir confiance en quelqu'un" - to trust someone) or "faire" ("faire confiance à quelqu'un" - to trust someone). "Prendre confiance" means to gain confidence.
TRAPS
Be careful with prepositions: "avoir confiance en quelqu'un" (trust in someone) and "faire confiance à quelqu'un" (to trust someone). "Confidence" in English (a secret) is "une confidence" or "un secret" in French, not "confiance."
