raver vs dancer

raver and dancer both are nouns.

Word	Noun	Adjective	Verb	Adverb
raver	Yes	No	No	No
dancer	Yes	No	No	No

As nouns, dancer is a hypernym of raver; that is, dancer is a word with a broader meaning than raver:

raver: a participant in a rave dancing party
dancer: a person who participates in a social gathering arranged for dancing (as a ball)

Other hypernyms of raver include social dancer.

raver (noun)	dancer (noun)
someone who rants and raves; speaks in a violent or loud manner	a performer who dances professionally
a participant in a rave dancing party	a person who participates in a social gathering arranged for dancing (as a ball)