streaker vs exhibitionist

streaker and exhibitionist both are nouns.

Word	Noun	Adjective	Verb	Adverb
streaker	Yes	No	No	No
exhibitionist	Yes	No	No	No

As nouns, exhibitionist is a hypernym of streaker; that is, exhibitionist is a word with a broader meaning than streaker:

streaker: someone who takes off all their clothes and runs naked through a public place
exhibitionist: someone with a compulsive desire to expose the genitals

Other hypernyms of streaker include flasher, nude, nude person.

streaker (noun)	exhibitionist (noun)
someone who takes off all their clothes and runs naked through a public place	someone who deliberately behaves in such a way as to attract attention
	someone with a compulsive desire to expose the genitals