raper vs felon

raper and felon both are nouns.

Word	Noun	Adjective	Verb	Adverb
raper	Yes	No	No	No
felon	Yes	No	No	No

As nouns, felon is a hypernym of raper; that is, felon is a word with a broader meaning than raper:

raper: someone who forces another to have sexual intercourse
felon: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of raper include aggressor, assailant, assaulter, attacker, criminal, crook, malefactor, outlaw.

raper (noun)	felon (noun)
someone who forces another to have sexual intercourse	someone who has committed a crime or has been legally convicted of a crime
	a purulent infection at the end of a finger or toe in the area surrounding the nail