The main difference between Confidante and Confidant is that the Confidante is a type of sofa and Confidant is a a character in a story that a protagonist confides in and trusts.
A confidante (also known as a canapé à joue, a canapé à confidants, or a canapé à confidant(e)) is a type of sofa, originally characterized by a triangular seat at each end, so that people could sit at either end of the sofa and be close to the person(s) sitting in the middle. The ends were sometimes detachable, and could be removed and used on their own as Burjair chairs. The name Confidante was coined by cabinetmaker George Hepplewhite, who described it in his Cabinet-Maker and Upholsterer’s Guide as being “of French origin, and is in pretty general request for large and spacious suits of apartments. An elegant drawing-room, with modern furniture, is scarce complete without a Confidante, […]”.
The confidant ( or ; feminine: confidante, same pronunciation) is a character in a story that a protagonist confides in and trusts. Confidants may be other principal characters, characters who command trust by virtue of their position such as doctors or other authority figures, or anonymous confidants with no separate role in the narrative.
A female confidant.
A type of settee having a seat at each end at right angles to the main seats.
A person in whom one can confide or share one’s secrets: a friend.