parole vs release

parole and release both are nouns.

Word	Noun	Adjective	Verb	Adverb
parole	Yes	No	Yes	No
release	Yes	No	Yes	No

As nouns, release is a hypernym of parole; that is, release is a word with a broader meaning than parole:

parole: (law) a conditional release from imprisonment that entitles the person to serve the remainder of the sentence outside the prison as long as the terms of release are complied with
release: the act of liberating someone or something

Other hypernyms of parole include freeing, liberation.

As verbs, release is a hypernym of parole; that is, release is a word with a broader meaning than parole:

Other hypernyms of parole include free, liberate, loose, unloose, unloosen.

parole (noun)	release (noun)
(law) a conditional release from imprisonment that entitles the person to serve the remainder of the sentence outside the prison as long as the terms of release are complied with	activity that frees or expresses creative energy or emotion
a promise	the act of liberating someone or something
a secret word or phrase known only to a restricted group	the termination of someone's employment (leaving them free to depart)
	the act of allowing a fluid to escape
	a formal written statement of relinquishment
	(music) the act or manner of terminating a musical phrase or tone
	merchandise issued for sale or public showing (especially a record or film)
	a device that when pressed will release part of a mechanism
	an announcement distributed to members of the press in order to supplement or replace an oral presentation
	a legal document evidencing the discharge of a debt or obligation
	euphemistic expressions for death
	a process that liberates or discharges something

parole (verb)	release (verb)
release a criminal from detention and place him on parole	generate and separate from cells or bodily fluids
	eliminate (a substance)
	make (assets) available
	prepare and issue for public distribution or sale
	release, as from one's grip
	let (something) fall or spill from a container
	release (gas or energy) as a result of a chemical reaction or physical decomposition
	part with a possession or right
	grant freedom to; free from confinement
	make (information) available for publication