compulsive vs flasher

compulsive and flasher both are nouns.

Word	Noun	Adjective	Verb	Adverb
compulsive	Yes	Yes	No	No
flasher	Yes	No	No	No

As nouns, flasher is a hyponym of compulsive; that is, flasher is a word with a more specific, narrower meaning than compulsive:

compulsive: a person with a compulsive disposition; someone who feels compelled to do certain things
flasher: someone with a compulsive desire to expose the genitals

Other hyponyms of compulsive include control freak, exhibitionist, perfectionist, workaholic.

compulsive (noun)	flasher (noun)
a person with a compulsive disposition; someone who feels compelled to do certain things	an electrical device that automatically turns a lamp on and off (as for an advertising display)
	a light that flashes on and off; used as a signal or to send messages
	someone with a compulsive desire to expose the genitals

compulsive (adjective)	flasher (adjective)
strongly motivated to succeed
caused by or suggestive of psychological compulsion