Cotillion (noun)

1. A formal dance, typically held for debutantes or young women being presented to society.
2. A ballroom dance, similar to a quadrille, that is performed by a group of couples.
3. A social event where young people are taught ballroom dancing and etiquette.

Origin:

Derived from the french word "cotillon" meaning "petticoat" or "dance".

Examples:

1. She attended a cotillion as part of her debutante presentation.
2. The cotillion was a traditional dance that was performed by a group of couples.
3. The young men and women learned how to dance at a cotillion event.
4. The cotillion was a fancy event with lots of dancing and socializing.
5. The cotillion was a formal dance that marked the transition from girlhood to womanhood.