parolee vs felon

parolee and felon both are nouns.

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

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

parolee: someone released on probation or on parole
felon: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of parolee include criminal, crook, malefactor, outlaw.

parolee (noun)	felon (noun)
someone released on probation or on parole	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