Other forms: ballrooms
A ballroom is a room that has enough space for many people to dance. Traditionally, a ballroom has either a hardwood or marble floor.
Most private houses are built without ballrooms these days, but it was once common for a grand home or mansion to include a special room for throwing dance parties. These ballrooms were large, with high ceilings, and could accommodate a live band and many dancers. Ballroom dancing was originally a formal, social dance form that only happened in ballrooms. The word comes from ball, or party, with the Latin root ballare, "to dance."