Other forms: confidants
A confidant is the person you tell your secrets to. A close confidant, her confidant, trusted confidant.
The relationship is defined by what is told rather than by closeness — a confidant may not be a friend, and sometimes the point is that they are not. In drama the confidant exists so the hero can say aloud what they think. Note confidante, the feminine form; and confide, from the Latin for trusting.
1nounconfidantThe person you tell your secrets to.
“Her older brother was her closest confidant; she told him things she'd never tell her parents.”
confidant is a trusted person.
French
confident
English, today
confidant
Borrowed from French confident.
Etymology from Wiktionary, CC BY-SA