Scottish reel vs square dancing

Scottish reel and square dancing both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scottish reel	Yes	No	No	No
square dancing	Yes	No	No	No

As nouns, square dancing is a hypernym of Scottish reel; that is, square dancing is a word with a broader meaning than Scottish reel:

Scottish reel: a lively dance of Scottish Highlanders; marked by circular moves and gliding steps
square dancing: American country dancing in which couples form squares

Other hypernyms of Scottish reel include square dance.

Scottish reel (noun)	square dancing (noun)
a lively dance of Scottish Highlanders; marked by circular moves and gliding steps	American country dancing in which couples form squares