Simplify the following text for a Grade 6 native English-speaking person.
Original: The categorization of dances as `` ballroom dances '' has always been fluid , with new dances or folk dances being added to\/removed from to the ballroom repertoire from time to time , so no list of subcategories or dances is any more than a description of current practices . There are other dances historically accepted as ballroom dances , and are revived via the Vintage dance movement .
Simplified: Ballroom dance is the name for a number of dances done in pairs , usually a woman with a man .