confidante
A confidante is a trusted female companion with whom one shares personal information, secrets, and feelings. The term denotes a person who listens, provides support, and keeps confidences, often functioning as an emotional confidant, adviser, or sounding board. The male equivalent is confidant; together the two terms describe close, trusted relationships regardless of formal status.
Etymology: confidante comes from French confidante, the feminine form of confidant, from Latin confidere “to trust.”
Role and expectations: A confidante is expected to maintain discretion, exercise empathy, and offer honest perspectives
In literature and culture: The confidante character appears across genres as a close companion who reveals