dance has 5 distinct synonyms spread across 2 of its 7 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
an artistic form of nonverbal communication
taking a series of rhythmical steps (and movements) in time to music
a party for social dancing
move in a pattern; usually to musical accompaniment; do or perform a dance
“My husband and I like to dance at home to the radio”
skip, leap, or move up and down or sideways
“Dancing flames”
Synonyms, antonyms and the broader and narrower relations for dance come from Princeton University’s WordNet. Full sources and licences.