A belle is a young woman singled out for being more attractive and charming than other women, as in the phrase belle of the ball. Cinderella was the belle of the ball, at least until midnight.
Belle comes from the Latin bella for “beautiful.” If you ever hear a woman being called a belle, it has nothing to do with ringing; she's super foxy. A Southern Belle is a lovely girl from the South, like Scarlett O’Hara from Gone with the Wind. A belle can be from anywhere, though, as long as she stands out. A belle has rivals, but she is more attractive and desirable. The belle is a little like the prom queen.