contradance vs folk dance

contradance and folk dance both are nouns.

Word	Noun	Adjective	Verb	Adverb
contradance	Yes	No	Yes	No
folk dance	Yes	No	Yes	No

As nouns, folk dance is a hypernym of contradance; that is, folk dance is a word with a broader meaning than contradance:

contradance: a type of folk dance in which couples are arranged in sets or face one another in a line
folk dance: a style of dancing that originated among ordinary people (not in the royal courts)

Other hypernyms of contradance include folk dancing.

contradance (noun)	folk dance (noun)
a type of folk dance in which couples are arranged in sets or face one another in a line	a style of dancing that originated among ordinary people (not in the royal courts)

contradance (verb)	folk dance (verb)
perform a contradance	perform a folk-dance