moonwalk vs dance step

moonwalk and dance step both are nouns.

Word	Noun	Adjective	Verb	Adverb
moonwalk	Yes	No	No	No
dance step	Yes	No	No	No

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

moonwalk: a kind of dance step in which the dancer seems to be sliding on the spot
dance step: a sequence of foot movements that make up a particular dance

Other hypernyms of moonwalk include step.

moonwalk (noun)	dance step (noun)
an exploratory walk by an astronaut on the surface of the moon	a sequence of foot movements that make up a particular dance
a kind of dance step in which the dancer seems to be sliding on the spot