The term BALLROOM ACTIVITY can be summarized by two crossword solutions: SAMBA (5 letters) and DANCING (7 letters). SAMBA is a type of Brazilian dance that originated in the 19th century, and is characterized by its lively and upbeat rhythm. It is often performed in pairs or groups, and is a popular form of ballroom DANCING. DANCING is a general term for any type of movement to music, and is a popular activity in ballrooms. It can involve a variety of styles, from traditional ballroom dances such as the waltz and tango, to more modern forms such as hip-hop and jazz.