Dance is the hidden language of the soul. — Martha Graham
dance : (a) to move one’s body rhythmically usually to music : to engage in or perform a dance (b) to move or seem to move up and down or about in a quick or lively manner — Webster
Dance is a performing art form consisting of purposefully selected sequences of human movement. This movement has aesthetic and symbolic value, and is acknowledged as dance by performers and observers within a particular culture. Dance can be categorized and described by its choreography, by its repertoire of movements, or by its historical period or place of origin.
An important distinction is to be drawn between the contexts of theatrical and participatory dance, although these two categories are not always completely separate; both may have special functions, whether social, ceremonial, competitive, erotic, martial, or sacred/liturgical. Other forms of human movement are sometimes said to have a dance-like quality, including martial arts, gymnastics, cheerleading, figure skating, synchronized swimming, marching bands, and many other forms of athletics. — Wikipedia
Here are links to pages about closely related subjects.
Entertainment Humor, Toy, Hobby, Competition (Game, Sport), Spectacle
Arts Performing, Visual (Architecture), Culinary, Language (Poem), Music, Dance
Belief Hypothesis, Forecast, Rumor, Superstition, Folklore, Faith